2021 Rules for Demolition Derbies

Full Size Trucks, Midsize Stock Class, Full Size Cars, Mini Van Teams, Full Weld Midsize

Age 10 and under. any electric powered childrens riding vehicle allowed. must have sides (no electric atvs) no sharp objects. upgraded batteries are ok. upgraded gears are ok. 

Any FWD unibody car 6 cyl or less, or RWD 109" and under (NO FULL FRAME CARS)

General Building: · MUST have a helmet and eye protection · Must have functioning seatbelts (lap belt only is permitted but we will check to be sure it fastens) · Long pants, shirt and sturdy shoes required · 4wd vehicles must remove one drive shaft · Vehicle must enter the track each time with functioning brakes · MUST have a roof sign Vehicle Preparation · MUST Remove all exterior lighting, trim, plastic moldings, chrome, antennas, hub caps, mirrors, ANYTHING that may break or fall off during competition · Trailer hitches MUST be removed · MUST Remove all interior carpeting, headliner, rear seats, plastic trim, all glass MUST be removed, dash MAY stay in or be removed · ALL DEBRIS MUST BE REMOVED FROM THE VEHICLE THIS WILL BE ENFORCED TO PASS TECH. PLEASE REMOVE ALL NUTS, BOLTS, BROKEN GLASS, AND RANDOM PBR CANS FROM YOUR VEHICLE. TRYING TO KEEP THE TRACK AS CLEAN OF SMALL DEBRIS AS POSSIBLE, THANK YOU! · Stock gas tank MUST be removed. · Max 12 gallon steel tank to be placed in back seat area, securely fastened, or off of rear seat bar (details under cage section) · Fuel lines must be run through the firewall with steel tubing or thick rubber hose minimum where the line passes through the firewall. BE SMART WITH HOSE CLAMPS · Electric Fuel pump MUST have a clearly marked ON/OFF switch · Up to 2 Automotive batteries may be used and are to be located in the passenger front floor area and must be well secured · Hood MUST have a minimum of 12"x12" hole for fire access · Must have 2 steel straps, rods or chains running from roof to windshield opening area for drivers protection. This is NOT to add any reinforcement. · MAY use aftermarket shifters and pedals. · Radiator must remain in stock location or be removed (no radibarrels) · ANY PLY tires allowed up to 30" tall, doubled or tubed is allowed, AIR ONLY · Solid rear forklift type tires may be used.

Drivetrain: · Any 6 cylinder or less vehicle permitted, stock engine transmission and rear end components to vehicle · Motor mounts must remain stock and must not be strengthened, braced, or altered in any way. · Rear end gears may be welded for posi trac but no bracing or welding to the housing of any kind · Headers are permitted · No carb conversions. · No Slider drive shafts · No bracing or reinforcement in any way. This includes engine cradles, Trans braces, distributor protectors, pulley protectors etc. Keep the drive train stock!

Hood: · HOOD MUST BE OPEN FOR INSPECTION!!!! · May have up to 6 hold downs TOTAL. Front 2 MAY be threaded rod 1" max diameter. The other 4 MUST be wire (3 passes max), Chain (2 passes Max), 3”Angle Iron with one bolt or seatbelts passing though sheet metal only · Threaded rod must be vertical (no bends) and may pass through unibody frame and through FACTORY sub frame mounts. DO NOT WELD ROD TO FRAME IF using factory sub frame location. BOLT only

· If the vehicle does not have a sub frame or you are not passing through it with the threaded rod you MAY weld the threaded rod to the UNIBODY FRAME only, and no farther back than the factory upper core support · 5x5 max plates on rod · Trunk may have up to 4 hold downs, 2 may be threaded rod 1"max. Other 2 chain, wire 3” angle, or seatbelts (same pass rules as hood) 2 may go to the frame · Trunk may be tucked with 50% remaining in the stock location. · NO Dish/U/Canoeing of trunk · NON SUBFRAME CARS ARE ALLOWD TWO ADDITIONAL RODS TO FRAME WITHIN THE 6 HOLD DOWN RULE ABOVE.

Body and Frame: · Aside from patch rule DO NOT weld on unibody/sub-frame for any reason other than is listed as allowed. · Rear sub-frame bolts must remain stock and unaltered · Rear trailing arms must remain stock and unaltered. · Body creasing is allowed in the rear quarters of the vehicle only · You may notch and pre bend rear frame to assist it going up · Rear window bar allowed to speaker deck only 2"x2" max material and 4"x4" max plates to mount · PATCH RULE, you will be allowed up to four 4x4x1/4" plates per VEHICLE, NOT PER SIDE. These MUST be in an area where a previous bend can be seen clearly!! NON SUBFRAME CARS ARE ALLOWD A TOTAL OF 6 PLATES PER VEHICLE · NO Stuffing, filling, or altering the sub-frame or unibody frame in any way. · Fenders may be trimmed for clearance and bolted in 6 places max

Doors · Driver's door MAY be welded solid · Other doors may be welded 5"on and 5" off with 3"wide plates MAX · May also use chains or #9 wire in 2 places per door seam (nothing to frame) 2 passes per chain, 3 passes per #9 wire location

Bumpers: · ANY automotive bumper may be used aside from Chrysler V bumpers · Bumpers MAY NOT be stuffed or loaded but can be seam welded · Bumpers may be mounted by bolting or welding · In place of an automotive bumper you may use FLAT steel tubing up to 2x6x 1/4" thick no wider than the front of the vehicle (tire to tire) (4x4x1/4 is legal) ends must be open. Do not add steel or create a point in anyway. You are allowed to weld a chrome skin over the flat tube for cool guy points. This should create a softer area of the bumper (This does not mean you can modify the chrome skin to make a big pointy bumper on your steel tube! Be smart) · You are allowed 6" per side extra material to Frame to mount bumper. Plate to outside of frame or tubing within frame is permitted as long as it stays to 6” or less · Front 2 threaded rod may pass through extra 6” of material · Front frame MAY be cut back no farther than factory core support location prior to mounting bumper · ALLOWED AND HIGHLY RECCOMMENDED 2 lengths of chain or #9 wire running from bumper to upper core support only. This is to hold the bumper in the event it comes loose, not to strengthen the car. 1 pass chain, 2 pass #9 wire, don't get creative here · Rear bumper must be stock or removed or same tube rule as front bumper NO POINTS

Interior Protection: · All tubing no larger than 6" diameter · Must have at minimum rear seat bar · 4 point cage is permitted consisting of 1 bar behind the seat, a dash bar and 2 door bars connecting them. You may run a halo bar off of rear seat bar and bolt to roof in two places, no part of halo may extend more than 6” above roof. · Door bars may not run farther back than 6" behind door post · Gas tank protector is permitted no wider than 24" MUST be at least 4" off the floor and 4" from rear sheet metal.. THIS IS FOR PROTECTION NOT REINFORCEMENT.

Steering & Suspension: · Front suspension must start as stock but may be altered/sleeved, to gain height. · Tie rods may be reinforced with angle iron but ends MUST remain stock · No Leaf Spring Conversions · 21” max to bottom of front bumper


Stock Midsize

Green Start Lights in a Racing Circuit.jpg
Green Start Lights in a Racing Circuit.jpg

suvs, van’s jeeps, Durangos ok V8s ok, no protectors of any kind. You may have lower cradle and pp. Must use a stock OEM motor mount frame side, it doesn't have to be for that vehicle.

1. Prep; must remove all flammable materials, remove all glass, plastic and trim. Airbags must be removed. Clean all debris out from inside of vehicles. Must remove gas tank and batt. From factory location.

2. Body; must remain stock you can body shape no doubling of metal. Do not touch body mounts unless specified. No bolting of any sheet metal unless specified.

3. Doors; You may weld drivers door solid all other doors, tail gates, or rear van doors may have 2 spots of 3x3 ¼ plate welded on each vertical seam only. Or you may use chain or #9.

4. Frame; Do not weld on frames at all. Do not shorten frames. You can not have exposed frame rails. Must be covered! You can drop you tailgate to do so

5. Hood; You can have 6 spots to hold his on. 2 spots may be ¾ max rod in the front 2 mounts. These may go to frame, u can weld them or bolt them. Other 4 spots must be sheet metal to sheet metal. Can use chains or #9. Or you may weld 2x2 angle iron with 1 3/8 bolt. Must have hole cut for fires. No bolting sheetmetal back together around holes.

6. Rims n tires; any rim and tire combo may be used.

7. Cage; You may have a 4 point cage, you can have 2 down bars from side bars to floor on both sides. Pass and driver side. No kickers. U can have a tank protector, tank must be in it. Protector may not be be any wider than 2inches past the size of the tank. All cage materials must be 5 inches from any sheet metal. Other then where it attaches to sides of vehicle. If you have a single cab truck u may built a separate protector for your tank that is bolted in the box close to cab. Must be bolted to frame in 4 spots. No other cage materials may contact it. Any other vehicles tank must be inside cab. You can have a rollover loop.

8. Truck boxes; No wedging of boxes. Box sides must be vertical. No extra body bolts. You may slide tailgate down to cover rear bumper area if you remove rear bumper. If bumper is left in place you can not move gate. You can remove it if you like.

9. Bumpers; You may use any bumper of your choice on front only. Homemade ok, stuffed and seam welded ok. No extreme pointys. If you feel it might be to big of a point please text first. If we feel its unsafe u will cut point off. Or u may use a no larger than 6x6 tube 3/8 thick. Rear bumper must be stock. No tubes on back. Must be a stock rear bumper. U can attach it by welding or bolting. U may have a 6 inch shock of your choice to attach it to frame. You can weld all 6 inches of bracket to frame. That is all if u have more that six inches welded u will cut. Shock can be homemade must only be 6 inches in total length . If you use factory bracket that came on vehicle u can weld 6 inches in length of it. Rear bumper u must use factory bracket for that vehicle. Engine, trans,

10. Rear end; any engine of your choice, no protectors of any kind. You may run slider. Trans cooker ok U can weld lower mounts in motor must be bolted to those. U can have 2 spots of chain one on each side of motor down to frame to help hold motor in place. You can run any rear-end of your choice bracing and pinion break ok. Trans crossmember may be a 2x2 tube from frame rail to rail. U can use a 3x3 angle welded to frame to set crossmember on. U may bolt and chain trans to crossmember. Suspension and steering… must be stock!! You can have aftermarket column. No reinforced tie-rods or ball joints. Rear-end must be held in with stock parts no aftermarket or homemade. You can chain or bolt down a-arms for height. U can chain rear suspension also. Must only be 28 max inches tall to the top of bumper in front and min of 14 inches in the back from bottom of frame rail. No radi-barrels, u can have a condenser bolted to the front to protect rad. Please call or text with any questions!

Chain and Bang Class

ANY 80’s AND NEWER FRONT WHEEL DRIVE CAR! (no full frames)


MUST have a helmet and eye protection Must have functioning seatbelts (lap belt only is permitted but we will check to be sure it fastens)

Long pants, shirt and sturdy shoes required


Vehicle must enter the track each time with functioning brakes


• MUST Remove all exterior lighting, trim, plastic moldings, chrome, antennas, hub caps, mirrors, ANYTHING that may break or fall off during competition

• Trailer hitches MUST be removed

• MUST Remove all interior carpeting, headliner, rear seats, plastic trim, all glass MUST be removed, dash MAY stay in or be removed. If not running a rear seat bar we recommend that the passenger seat stays in.

debris must be removed from the vehicle, this will be enforced to pass tech. Please remove all nuts, bolts, broken glass and random PBR cans from your vehicle. Help keep the track clean

• Stock gas tank Must be removed • Max 12 gallon steel tank may be placed in back seat area, securely fastened, or off of rear seat bar (details below) Fuel lines must be run through the firewall with steel tubing or thick rubber hose minimum where the line passes through the firewall. BE SMART WITH HOSE CLAMPS. • Electric Fuel pump MUST have a clearly marked ON/OFF switch

Battery (1 only) may be relocated and secured in the passenger seat area. Stock Location is okay

• Hood MUST have a minimum of 12"x12" hole for fire access

• Must have 2 steel straps, rods or chains running from roof to windshield opening area for drivers protection. This is NOT to add any reinforcement.

• MUST use stock shifter and pedals

• headers are NOT allowed

• Radiator must remain stock and in stock location


• Must be secured by chain, #9 wire, or seat belts in up to 4 locations per door. Chain may pass through 1 time per location and #9 wire and seat belts can pass through up to 3 times per location.

Hood and trunk


• Must be secured in up to 4 locations with the same pass rules as above, that’s chain, #9 wire, or seat belts only! Stock hinges will NOT count towards the 4 locations




• Rear Frame May NOT be notched or pre bent. (If it looks like this has been done you will move up a class)


• No frame patches allowed



• If the car came with a plastic bumper or one that is rotted beyond use, you may swap it with another tin style small car bumper but it must be bolted on in no more than 4 locations per side

• Rear bumper must be stock or removed


•6 PLY MAX, STOCK DOT TIRES! NO V-TREADS, NO SKIDS, bring a street pattern tire, that’s it



The only welding allowed is if you choose to run a rear seat bar, 4 pt cage, Or if you need a bumper mount plate

Not required but HIGHLY recommended 1 bar may be run behind the seat from post to post, if you need more room it may extend up to 6” past the pillar but must remain 8” away from any rear seat sheet metal. This bar may be up to 5” round or square material. If you are removing the dash and wish to run a basic 4 pt cage it will be allowed, however do NOT use this to strengthen the car, no down legs, no kickers. Besides the cage ZERO WELDING! You may run your gas tank off of the rear seat bar but do not have any steel extend past the tank more than 2” in any direction and must remain 8” from any rear sheet metal.

You may also BOLT a steel plate, C-channel (no more than 2” ends with open end facing the door) or steel tube (not sticking out more than 2”) of any height on the drivers door. This may not run more than 3” past either door seam. NO CAN OPENERS!! BE SMART HERE

• If you have a goofy angle where your bumper mounts (ie cavalier) or a spot that bent you may square it off to make mounting easier, CRUSH BOXES MUST STILL BE IN PLACE! DO NOT SHORTEN FRAME! You may also weld a small, up to 5x5x1/4” plate to the end of the frame for you to BOLT your bumper to. DO NOT PUSH THIS AND SHORTEN THE FRAME FARTHER!

• If dash is left in fuel lines and battery cables may be run over dash, must be wrapped in heavy padding and a significant hole must be cut in back of hood to allow them to pass through BE SMART HERE! CONTACT US IF NEEDED

• Any computers and wiring may be relocated to a safer place


4cyl or 6cyl only no v8s, no full frame cars allowed. Rear wheel drive ok, any year ok.

· SAFETY- Seat belts must be functioning and worn.

· BODY- You may body shape but do not fold or double metal, you can repair sheet metal rust but must be repaired with same thickness of metal, do not cut out rust you must overlap! Leave the rust there. You can seam weld body firewall forward sheet metal only! You can plate outside or inside of frame rail firewall forward Not both sides. These plates may be 3/8 thick same width of rail. You can trim wheel well for clearance, and you can add up to 5-3/8 bolts in each fender.

· DOORS- You can weld doors 5 inches on 5 off you can use 3-inch-wide ¼ thick plate on every door seam. You are allowed only 1 plate. Drivers door may be welded solid and a plate may be added for drivers safety ¼ inch thick max.

· HOOD- You can have 6 hold downs on hood up to 1inch rod. All 6 may go to frame. Only 2 may go to sub. You can run front 2 through sub mounts. Must have a 12inch hole in hood for fires. You can have up to 12 3/8 bolts to hold skin together around each hole u cut.

· TRUNK- Trunks may be welded 5 on 5 off 3inch wide, ¼ thick plates and you can have 4 -1inch rods. All 4 rods may go to rail. (through or welded is ok) You may tuck your trunk with a single 90° bend must be 50% stock. No wedging of trunk, quarter panels must be upright. No ramping effect. You may remove rear speaker deck. (Station wagons can secure tailgate same as trunk but no threaded rod in the back of a wagon at all).

· WINDOWS- You must have chain or straps in your Windshield. Can go from roof to bottom of window sheet metal. May be bolted or welded and can be weld to halo bar. Rear window bars must be attached to roof and split trunk seam with a 6 x6 plate. Do not run window bar to floor. Do not attach window bar to rollover loop. You may have 4 loops of #9 wire in each window opening (do not attach it to your cage)

· Motor and trans- Trans cooler ok. You can use any motor but must be 4 or 6cyl only no v8s. You can have headers and a carb set up. You can have engine cradle and trans protector. You can have carb and header protection, do not attach protectors to cage. Do not weld any kickers off of cradle. you can beat your fire wall for clearance. Motors mounts may be mounted solid with a welded strap or square tube. You can run factory radiator or radibarrel (MUST BE SAFELY CONSTRUCTED) and mounted in front of the motor

· STEERING AND SUSPENSION- You may reinforce tie rods aftermarket tie rods are ok. You can reinforce struts and weld your suspension solid. aftermarket pedals, steering column and Shifter are ok.

· CRADLES AND BODY BOLTS- DO NOT weld on your cradle or frame unless specified! You can replace body mounts. You can chain your sub to frame.

· WHEELS AND TIRES- You can use any tire and rim you want!

· CAGE- You may have a 4- point cage with a rollover bar. Rollover bar must be strait up and down not angled. You can weld it to the roof with 12 inches of weld in the center of the roof only. You can have up to 4 down bars, and they may be only welded to the floor. Down bars must be in the front door area only don’t go past the door front or back. No kickers off of cage at all. CAGE material must be no larger than 6x6. Must be 8 inches off of floor (the entire cage) you may have 2 straps 3inch wide 3/8 thick from front bar to top side of firewall. Cage can go up to 60” from dash bar back.

· GAS TANK AND PROTECTOR- You must remove factory tank and replace it with a boat tank or something similar. Tank must be in the center of the back-seat area or behind driver seat. Must be secured properly. If you are running a gas tank protector, the tank must be in it!!! Protector can only be up to 24x24 and must be secured well. You can have your tank protector tight to the rear package area. DO NOT BEAT SHEET METAL AND DON’T GO PAST REAR SEAT AREA. Do not weld or attached it to any sheet metal must be floating off of rear seat bar. You can have bars off the back protector that go straight up to protect tank. All gas lines must run through or over the fire wall. All fuel pumps must be labeled for shut off.

· BATTERY- Must be moved to the inside of car and secured on the floor or in the cage. Battery must be covered for driver’s protection. Battery boxes are strongly encouraged.

· BUMPERS AND SHOCKS- You may use any automotive bumper on the front only. Rear bumpers must be stock or removed or up to 2x6x1/4 tube. Bumpers may be seam welded and have any holes welded shut. Loaded ok. Or u may use up to 4x6 3/8 thick square tube. No excessive homemade bumpers, no more than 4” point and must be spread out 32 inches. If using stock shocks, you may push them in and weld. You can weld shock to bumper and weld shock to car. You can also remove shocks and replace them with tubing no larger than frame opening. You get 12 inches if tube, and we will measure 12 inches from back of bumper and drill holes. You can run your 2 front rods through the tube and front body mounts. You can have 2 - ¼ inch thick 3-inch-wide straps from top of core support to top of bumper or you may use #9 in 2 spots.

· YOU MAY HAVE 4 4X6 PLATES 3/8 THICK TOTAL!! FOR PRE-RAN you are allowed 2 additional plates but must be 4x6x1/4 thick max. THESE PLATES MUST NOT TOUCH. MUST HAVE 1 INCH GAP

Llimited weld Small Trucks

Weld Class

1. All cars must be stripped of all glass, body molding, and all exterior lighting. The interior and trunk
must be cleaned of anything that could injure driver during derby.
2. 5 gallons of fuel maximum.
3. Battery can be in stock location or securely strapped to passenger side of vehicle.
4. The radiator must remain in stock location.
5. All doors must be chained, welded, or wired closed to prevent from opening during the derby. Metal
straps can be welded to the door seams with a 3 in wide X 1/8 thick max.
6. Trunks must remain open for inspection and Chained after. Trunks must remain empty.
7. No adding of metal to any frame, body or suspensions allowed. No reinforcement of front end, rearend, radiator support, fenders or anywhere on car. Any rust patching on body panels are subject to tech
officials’ approval.
8. No doubling of body panels allowed, no added metal allowed. Rusted out holes in your floor sheet
metal may be patched where components will be mounted or for drivers safety, sheet metal only. No other sheet metal patching is allowed unless it is a safety issue. You may not patch clean and solid floors.
9. Transmission must remain stock.
10. Rear Ends must be stock to year of car.
11. All drivers will use DOT approved helmet and use seat belts at all times. Shoes and pants are
12. All cars must have working brakes.
13. Only one person per car allowed at the tech booth area when cars are being teched. This rule will be
strictly enforced.
14. Driver must were helmet, seat belt and eye protection at all times.
15. Drivers must remain in the vehicle with helmet, seatbelt and eye protection on until notified by an
that it is safe to exit the vehicle.
16. All vehicles must have a fire extinguisher mounted within the drivers reach, inside the car.
17. Driver’s door hits are illegal. If the hit is deemed by the official to be careless or intentional, you
will be
18. No hot rodding in the pits. Keep it at an idle.
19. Any open door will be cause for disqualification; Fire will be cause for disqualification.
20. You must make aggressive hit every 60 seconds. You will not be given any warnings: you will just be timed out.
21. All glass must be removed.
22. Engines must remain stock for car.
23. Rear ends must be of a passenger car origin, 5 lug maximum. Aluminum or steel wheels permitted. No solid tires.
24. You may not add cooling capacity. No supplemental cooling devices allowed.
25. Suspension must be original factory suspension for that car. 

26. Front bumper may be stock or max 2x6 square tubing. 5/8" thick
Just because it is not listed in these rules doesn’t make it legal. If you are not sure about a rule please contact tech


Team Mini Vans

Bone Stock Midsize Class


Any 2wd or 4wd full size pick-up trucks will be accepted. Any 4wd pick-up will need to remove front or rear drive shaft to compete. You may swap motor (GM to Ford ect)). All windows, tail lights, head lights, chrome, and mirrors MUST be removed. Rear End may be swapped. Sliding drive shafts are ok

1. Truck boxes: All pick-up boxes must or original equipment style, may put ford box on Chevy etc. No homemade boxes! No utility boxes allowed!! No lift kits are allowed. Pick up boxes may have additional four bolts per side to help secure safely the pick-up box to frame. Bolts used must be of similar size to bolt used from the factory on truck.

2. Doors and cab: Drivers door maybe welded secure. All others must be chained or 5” on 5” off welds allowed. You may mount one 6” maximum round bar mounted horizontally from post to post behind the driver seat. Must be mounted 3 inches up or down from center of seat (not including headrest). You may weld or bolt to the sides. Plates are not to exceed ¾ inch diameter. Dash Bar and rear seat bar are strongly recommended and may be welded or bolted together creating a cage. Tailgates must be chained with chains not to exceed 3 feet in length with 1” links. Welding is permitted.

Hood may be fasten in up to 6 spots,with the hood hinges counting as 2 locations. No more than 4 chains in the hood. All hoods must have 15” square hole in fire wall. You must have an air cleaner on carburetor. Tailgates may be welded to truck box or on van body to secure them for safety.

3. Bumpers and fenders: may be trimmed or removed but reinforced. MANDATORY trucks must have front and rear bumper at the start of competition to compete. You may change non steel bumpers and replace them with a similar type vehicle or a 4”x6"X1/4” tube with open ends. You can have 6” per side of additional material to attach bumper. NO LOADED BUMPERS. Bumper heights back 22” from the top of the bumper and front 27” from the top.

4. Suspension: May not be blocked or altered. No coil over shocks. All leaf springs on trucks MUST have standard number of springs for the vehicle being used in competition. NO OVERLOADS ALLOWED. Truck suspension must not be altered and meet with official’s approval before competition. No welding of suspension allowed. You may have 4 clamps total on leaf springs.

5. Batteries: all batteries must be relocated to inside of the truck and must be bolted with a 4 point hold down system and must be covered for the protection of the driver.

6. Gas tanks: fuel tank should be relocated to bed of the truck and attached to the floor or frame of the center of the box. You should have a plate in your box to mount your fuel tank no larger than ½” thick and may not go past the starting of the wheel wells. DOT approved metal boat tanks and approved fuel cells with all connections properly sealed must be used. All tanks must be strapped down securely and must be completely covered. All original gas tanks must be completely removed. Electric fuel pumps must have an emergency shut offs within drivers reach and must be clearly marked for emergency personnel. With any fuel tank you may only use up to 6 gallons of fuel. NO ALCOHOL MAY BE USED. Gas spillage will result in disqualification.

7. Welding: no welding except for pumpkin gears, front and rear bumper, shocks, motor mounts, transmission mounts, and driver’s door.

8. Seat belts: all trucks must be equipped with DOT approved seat belts and seats.

9. Tires and rims: no split rims allowed on trucks vans, or SUV's. All wheel weights must be removed from rims. Truck tires and rims MUST be stock size. Up to 33” tires in full size truck class. No ply restrictions. All lugs must be trimmed on grip type tires.

10. Body mounts: undamaged body mounts may not be altered. If body mounts have been damaged, bolts may be replaced only with bolts of similar size.

11. Halo bars are strongly recommend!!! They must run in an up and down position and either welded or bolted to the rear seat bar and 2 bolts to the roof



ANY automobile EXCEPT 1973 and older Chrysler Imperials, and 2003 and newer Ford products. Anything flammable, breakable, or that may fall off your vehicle must be removed! No stock fuel tanks are to be left on a vehicle.


-NO distributor protectors

-NO full cradles

-NO Steel or aluminum aftermarket transmission bell housings allowed except jw contoured ultra-bells or similar to repair broken trans.

-Basic motor mounted cradle with pulley protector are allowed, no solid bushing lower mounts to frame.

- Lower cradle front plates are OK, just don't get creative!

-Halo/Header protectors are ok! If your halo extends past the header protectors and is within 6” of the firewall, all of the firewall behind the halo will be cut out. Cannot be connected to front plate of lower cradle if you choose to run one!

-If running a pulley protector, NO sway bar.

-Contoured transmission protectors allowed transmission must be free floating if running protector. NO FULLY WRAPED TRANS BRACES. Trans brace MUST BE 2” away from contact with the cross-member, or ANY TABS/STOPS off the cross-member to prevent the transmission from shifting at the start of the derby... NO plug welding trans brace to cross member either.

-Do not alter the firewall or floor to add strength to the transmission tunnel.

-Mid plates are allowed solely to change trans bolt pattern, and do not exceed 2" wider or taller than transmission. Mid plate can ONLY be bolted to the engine block and the transmission brace!

-Rear ends may be braced. BE REASONABLE if your bracing strengthens anything more then the rear end you will go straight to the trailer.

-Rear end trailing arms may be reinforced. Must start as a factory trailing arm, can be swapped make to make. Feel free to shorten or lengthen.

-Top seam may be welded firewall forward weld not to exceed 1/2" wide.

-Tilting front by cutting, moving & re-welding WITHOUT added metal is legal on any vehicle.

*When tilting, you are to cut the factory weld, and re-weld where the factory weld existed only, this exists due to guys getting creative and adding metal where it shouldn't be!

-Cold bending is also allowed

**** If you choose not to tilt or cold bend****

*On metric GM's, you may run a 3”x6” plate of your choosing anywhere cross-member forward.

* On non-metric GM's, and any other non tilted or cold bent vehicle you can add 14” of seam weld anywhere of your choosing.

-Rear window bar. 3”x3” tubing, or 3” diameter max! Plates to mount the bar can be up to 6”x6” and must be mounted where the speaker deck meets the trunk lid. The top mounting plate must be within 4” of where to roof/rear upper window lip begins. CANNOT connect to roll over bar.

-Hump plates, 4”x18”x3/8”, centered on hump!

-Only added brackets are for watts links, no excessive watts brackets! Do not create mounting plates for factory components except a steering box if doing a swap.


- 6”x6” tubing max! Minimum thickness of 1/4” and 3” diameter.

-Cage can be bolted or welded in, both must pass inspection!

- 4 point cage with a dash bar must at least 6” off of the transmission tunnel, door bars cannot extend farther then 8” past the center of the door post. Backseat bar must be within 4” of center of the door post! A shifter bar is allowed, but must be at least 6” off of the transmission tunnel!

-2 down bars from cage to sheet metal only, must be between the doors, and vertically off of the cage.

-Gas tank protector may be tight to rear sheet metal. May be up to 30” wide MAX and 24” tall! Gussets are OK, once again, don't get creative!


-Must have an adequate opening in-case of a fire.

- 6 hold downs max! Can use chains, wire, threaded rod (1” MAX), bolted angle (angle cannot be longer then 6”), only rod can go to the frame. The rod can go through the factory core support holes, or can be welded anywhere vertical a-arms forward with a maximum of 6” of the rod welded to the frame. Only 2 of the 6 hold downs may go to the frame. Rod cannot extend out of hood longer then 6”. Max hood plate size is 6”x6”. Your core support spacer will be a maximum of a 3”x3” tube, with a maximum of 6” of space between the core support and the frame max. If you run your rod/tube to the core support mount the CORE SUPPORT MOUNT MUST BE STOCK, NO ADDED METAL.

- You can use (10) 3/8” bolts to secure the hood webbing after cutting out the hood.

-If you are not running a hood, you are not running a fan.


-Doors may be welded, chained, or wired.

-2 spots per seam. Chains cannot exceed 36”, max door plate size is 6”x3”.

-Drivers door can have all seams welded.


-Wire, threaded rod (1” max), chain, or 6”x3” plates may be used.

-Total of 8 hold downs can be used on the trunk lid. ONLY 2 rods may connect to frame, rods can be ran through body mount or welded vertically to frame.

-12" maximum dish from factory position , do not remove speaker deck. Trunks may not be moved forward.

-Tailgates: MUST be chained, wired, or welded in 4 places maximum. Chains or wire may not exceed 36" (Two items per vertical seam). If welding tailgate- Plates not to exceed 6"x3"x3/8". No threaded rod allowed in tailgate. Chains may go around bumper and tailgate.


- Fenders may be trimmed.

-5, 3/8” bolts per fender with up to 1” washers! Excess bolt must be trimmed.


-Factory style radiator in stock location. NO antifreeze!

Full Size Trucks

Full Size Cars