6 FOOT UNDER CLASS
ALL RUST REPAIR MUST BE PRE-APPROVED OR MEET THE FOLLOWING REQUIREMENTS:
A MAXIMUM OF 18-20 GAUGE SHEET METAL OR OEM FLOOR MAY BE USED. MAY OVERLAP PAST RUSTED AREA 1-INCH ONLY. RUST REPAIR IS MEANT TO RESTORE CAR TO OEM, NOT STRENGTHEN. IF DEEMED EXCESSIVE IT WILL BE REMOVED.
- Any 1970s or 80’s and newer sedan or station wagon, IMPERIALS PERMITTED. PRE RAN CARS ARE PERMITTED HOWEVER THEY DO NOT RECEIVE ANY ADDITIONAL FIX IT PLATES NOR DO THEY GET ANY WIRE OR BANDING
- Any motor and transmission. Transmission cooler permitted in cockpit tightly secured.
- FULL CRADLES PERMITTED. SOLID MOTOR MOUNTS PERMITTED
- Slider driveshaft permitted
- ANY REAR, BRACING ALLOWED. NO BRACING MAY ATTACH TO BODY, FRAME OF
PACKAGE TRAY AND CANNOT STRENGTHEN CAR IN ANY WAY.
- Bracing of rear must occur between humps measured from innermost point of frame aka width of package tray. NO BUMP STOPS
- Wheels and Tires
- Any tire may be doubled.
- Full wheel centers permitted, valve stem protectors allowed may not extend out past the wheel further than 1″. lip protectors, beadlocks and solid wheels ARE PERMITTED
- Wheels may be spaced 1/2″ with additional center.
No external rubber or other material on the outside to protect the tire.
Bumpers- Bumpers are interchangeable. Any automotive bumper may be used on any car, but no more than one set of bumper brackets may be used. Bumper brackets must be mounted using one of the following two methods.
- The factory bumper bracket that came on the frame can be welded to the frame (single pass ½” bead of weld only). You can weld bumper brackets and shocks to the bumper. You can weld shocks to shock brackets. You can collapse shocks and weld them. Brackets may not extend any further back than the very front most part of your top-front a-arm bracket factory weld. All brackets must touch the bumper and cannot be cut apart to lengthen.
- If not using a factory bracket, you may use ONE 4” wide x 3/8” thick plate that begins at the bumper and extends down any 1 of the four sides of the frame but must be on the outside of the frame. Plate can only be on one side of the frame and may not extend past the front most weld on the front a-arm bracket on top of the frame. This plate may wrap around the front of the frame 4” to create an “L” shape. This is to give you enough material to weld your bumper to the strap. Plate may not be any wider than 4” whether it is tee pee or flat. Do not abuse these rules YOU WILL CUT. You may reinforce bumpers on the inside of the bumper. You may trim bumper ends or fold them around. Welding the bumper skins (chrome to inner liner) is allowed. Weld them solid, we do not want them coming off. Bumper height not to exceed 22” to the bottom of the bumper to the ground and must be a minimum of 14” from the ground to the bottom of the bumper or frame. Bumpers must be in the stock location. Bumpers may not be sleeved around frame at all. Both front and rear bumpers may have 4 loops of double strand 9 wire from bumper to sheet metal only.
Bumper may have up to a 14” point measured from the back of the bumper where it mounts to the frame. The point may be no more than a factory Chrysler Pointy and must span over 32” and bumper may be a max of 8”X 8”
Bumpers may be home made and must not exceed 8” x 8” and must meet all other requirements laid out above.
Rear bumper brackets must follow rules for front brackets but may be only welded to frame for the first 14” continuous. INSTEAD OF AN OEM BRACKET YOU MAY USE A 4”X 14” LONG 3/8” PLATE
GM wagons may weld bumper to body in one spot on each end with no bigger than a 3”x5”x1/4” plate and tail gate may be welded to bumper following trunk welding rules.
If a car needs the frame clipped it MUST be done at a factory mating point in the frame.
You may shorten front frame rails and must be cut off front most part of frame. Front frame must be 20” from front most part of coil pocket on bottom of frame forward. Cadillacs must remain 18’ from front of coil bucket forward.
All cars may seam weld main seams firewall forward.
All cars may be tilted in one spot only with no metal added
BOP cars may weld the BOP hole shut with a piece of material the same size as the hole, must be a butt fit and no thicker than 1/8” material must have a hole drilled in the center of this plate so we can see thickness
If shortening the rear of a car, on a factory leaf spring car, you MUST run the factory length leaf springs mounted in the same way they were from the factory. This means the spring MUST mount in the factory location in the front as well as the rear.
If shortening a coil spring car in the rear, you must maintain a 10” gap between the rear bumper bracket and the back edge of the hump plate.
If you choose not to run a bumper bracket, you must maintain 10” between Bumper and Hump plate.
All cars may have a hump plate.
Plate may be 30” long and no thicker than ¼” no more than 1” above and 1” below the frame
Plate must be located on the tire side of the hump and must be between the body mount in front of the rear wheel and the body mount behind the rear wheel, you choose the exact location.
Hump plates may be tee pee plates
Tie Rods and Ball Joints
You may run aftermarket Tie Rods and ball joints
No Hydraulic rams may be used for steering
Heim Joint tie rods are ok
You may have weld in ball joint rings, they may not exceed 3” tubing and may be no longer than 6” and only attach to A-Arm
A-Arm mounting brackets may not be changed
A-Arms may be welded down with 2”x6”x ¼” plates, one on the front and rear of the upper A-arm only, no other welding on upper A-Arms
You may run 1” all thread in place of the factory shock, this all thread may have a 3” washer on top and a 3” washer on the bottom a-arm. Nothing may be inside the spring pocket except a 1” nut and standard 1” washer
Steering box may be changed but must be automotive type
Steering box adapter plate allowed but must not reinforce car in any way.
Pittman arm and idler arm must be OEM not homemade.
Idler arm may not be welded to frame
May be bolted to lower a-arm with a single 5/8” bolt on each side
Sway bar may be attached to frame with a 4” long piece of 2”x2” tubing that may be welded to frame with no more than a ½” bead of weld
You may run aftermarket spindles
Front Coil Springs
You may run aftermarket front coil springs
Leaf springs must have a 1”stagger
Main spring must be on top of stack
Springs must remain under the axle
Maximum of 9 springs no thicker than 3/8” thick and no more than 2 ¾” wide
You may have 6 clamps per side clamps may be no bigger than 2”x4”x1/4”
Springs must mount in factory location
On all leaf spring cars the rear shackle may be welded solid with a 1/2” wide bead of weld
All cars may use 1” all thread for rear shocks
You may have 3/8” chain or 9 wire from rear axle to frame in one spot per side, must go around the frame unless attaching to your hump plate then you may have one chain link welded to the hump plate for attachment.
Any rear axle, maximum of 10 lugs
Rear axle may be braced, bracing may not strengthen car in any way
Trailing arms may be reinforced or may be made of 2”x3” material
Watts conversion will be allowed
Top Brackets for watts conversion must be two separate pieces and must not connect to outer frame rails
Lower brackets no larger than 3”x3” tubing 6” long ¼” thick
You may not replace or swap package tray
Any tire and wheel combo front or rear, solid tires allowed
Engine and Transmission
You may plate only the TOP of the engine cross member between the frame rails with a piece of steel no thicker than 3/8” thick must be on the surface only. This piece may not weld to the frame rails.
Engine of choice is permitted
Full cradle and trans brace permitted
No part of engine protector can be wider than the headers
Balancer protector may not be in contact with sway bar before the show
Fan shrouds are allowed
Engine may be have four mounting locations, the motor mount area being one, then the other three locations may be no more than 3/8” steel 4” wide
You may have two engine chains one on each side of the engine, no bigger than 3/8” standard chain no more than two links welded to the frame on each side
Transmission Brace and Skid Plate
Brace may be bar type or plate type and may run from heads or D/P to the back of the transmission.
Brace may be no wider than 12” where it mounts to the transmission cross member, this will be measured 6” out from the center of the transmission tail shaft.
You may weld, bolt or chain the transmission to the cross member
You may weld angle iron 3”x3”x1/4”x8”long max to the frame to mount transmission cross member.
You must remove factory cross member mount if using angle iron to mount cross member.
If not using the factory cross member, you may use up to 2”x3” steel for a cross member.
Transmission may only mount to cross member in a 12” area at the back of the transmission. Angle may be welded to frame for crossmember a max of 6” long
You may have two spots of nine wire with 4 loops of wire or one loop of cable no larger than 3/8” cable and turn buckles can be no larger than 12” and must be in the window openings.
May be tied to frame or cross member
May only be tied to body not cage
You may weld standard 5/8” washers on sheet metal where wire or cable goes through
Frame rails may be tied together behind rear axle with no more than 4 loops of #9 wire or a single loop of 3/8” chain or cable. May go around frame or you may weld a single 3/8” chain link to the frame to run wire through
Radiator must mount in factory location
You may run a radiator protector
You may run a piece of expanded metal or a condenser in front of radiator.
Expanded metal may not go past core support mounts and may only be 1/8” material.
Condenser or expanded metal may only be held in with 6-3/8” bolts or four 1” welds
Body bolts may be replaced with up to 1” bolts, 6” long
Must maintain a 1” space between body and frame, spacers may be steel or rubber no bigger than 3” round or square
Bolts may only go through the top layer of the frame and the body with washers in the body no bigger than 5”x5”x1/4” square or 6” round no welding of washers
Core support may be mounted solid without a spacer
May not add or relocate body mounts
Core support all thread may be welded to the side of the frame
Core support spacers may be welded to the frame and the core support.
Spacers may not be made with material any bigger than 3”x3” square tubing
Hoods may have up to 12-3/8” bolts to be used around your cut outs, washers for these bolts not to exceed 1 ¼” round.
You may have 8 spots to hold your hood down two of these being the all thread for the core support the others may be up to 1” bolts no longer than 8”, you m ay run these sheet metal to sheet metal or you may weld 2”x2” angle 6” long to the tops of the fenders and the hood to bolt through.
Fenders and wheel wells may be rolled for tire clearance.
You will be allowed 5- 3/8” bolts with 1 ¼” washers in each fender no welding permitted
If wrapping fenders around the front of the core support you may have 4-3/8” bolts with 1 ¼” washers to secure fender to front of core support
All doors may be welded all the way around on the outside seam with 3” wide ¼” thick material.
Tops of doors may be welded with same size material
Both front doors may be reinforced on the outside only.
Reinforcement may only go 6” past the door seams of the front doors
All cars may have a four point cage
Side bars in cage may go from fire wall to wheel well tubs
All cage material with the exception of side bars must be 6”material or smaller
Only side bars may use more than one piece of material stacked together all other bars must be single bars no larger than 6” material.
No size restrictions on side bars, bars may be inside of doors
Each joint in the cage is permitted to be gusseted as well as in the tank protector
All cage components must be a minimum of 4” off the floor with the exception of side bars and down legs.
Dash bar may be tight to firewall or may have a spacer between dash bar and firewall to take up gap.
You may have either have two kickers behind the a-arms one on each side no larger than 2”x2” material OR you may have “belly bars” a single piece of 2”x2” material from the engine cross member to the transmission cross member one on each side of engine. These may run between the engine cross member and the transmission cross member and may not be gusseted.
You will be allowed 4 down legs. Down legs can be made of material no larger than 3”x3”x1/4” must be vertical and welded to the door bars. May be welded to the top of the frame and must be between the front most interior seam of the front door and the rear interior seam of the rear door. Must be straight up and down.
Roll over bars must be attached to the interior cage and must go straight up and down. May be attached to the roof with one 5/8” bolt on each side of the car.
Gas Tank Protector
Protector can be no wider than 32” and must be centered in the car.
Protector may be tight to packing tray sheet metal and may have two ½” bolts going through the packing tray and tank protector.
Fuel cells must be metal, NOT PLASTIC and must be mounted in the tank protector not bolted to the floor
Pedal and Battery Box and Cooler Mounting
Mounting of battery box, pedals and coolers must stay 2” away from body bolts ,engine protectors, or transmission protector. Mounting of pedals and battery box may only be bolted to sheet metal.
Coolers may not be used to reinforced car and may not be mounted to body bolts or frame.
The installation of all these components must be deemed safe by the officials before you allowed to compete.
Must be a trunk lid, no hoods.
Trunk lid may be folded over.
Speaker deck may be removed and trunk may be welded all the way around in a 5” on 5” off pattern with 3” wide by ¼” flat plate material.
Trunk lids must have two 6” holes in them or one 12” hole.
Trunk inspection holes may have 4-3/8” bolts with 1 ¼” washers around them to bolt the layers together.
Trunks may be tucked but must remain at least 6” off the floor above the frame rails.
Wagons may be tucked also but the roof may not be welded to the quarter panels and all material must stay 6” off the floor at the frame. If we suspect any loading under the roof you will untuck it or not run.
All cars may have two pieces of one inch all thread in the rear behind the humps toward the rear of the car.
These pieces of all thread may have 4” welded to the frame and have no more than three nuts and three washers on each piece.
Wagon tail gates may be welded in the same 5”on 5” off fashion as the sedans.
If wagon is smashed the tail gate is still the only thing that can be welded.
2003 and Newer FoMoCo
You may use a bolt in style cradle or weld in an 98 and older FoMoCo cradle.
If you weld in a cradle it must be butt welded between the frame rails only, no added material.
Cradle must mount between the factory cradle mounting holes that bolt in the aluminum cradle.
You may weld on factory FoMoCo A-arm mounts to mount your suspension with.
The upper mounts must mount between the factory frame holes.
You may not plate the cradle in a 2003 and newer Ford with anything more than a 8”x8”x3/8” thick plate
03 and up may be tilted in one spot only
You may build a spring pocket and weld to the outside of the frame, towards the tire
Spring pocket may only be one layer and no more than ¼” thick material no bigger than 6” in diameter
Top of spring pocket must be flat and is only there to rest the a-arm on and in no way reinforce the a-arm
03 and Up Steering
You may drill 3 holes in the driver’s side frame rail to mount the steering box.
You may sleeve these holes with no bigger than a 5/8” od tube.
Bolts must run through the side of the frame as they would from factory.
You may also drill two holes in the passenger rail to mount idler arm but they may not be sleeved and may only be bolted through the inner rail.
You may run a factory sway bar bolted to the bottom a-arm with a 5/8” bolt and attach it to the frame with a 4” long piece of 2”x2” tubing
FIX IT PLATES
Every car fresh or pre ran may have 12-6”x6”x1/4” fix it plates
FOR ANY QUESTIONS PLEASE CONTACT JACOB GILLIAM AT 614-315-7468