leaf conversion class
******** You must pass inspection within 3 times through inspection or you will not be allowed to run
1. Any American-made sedan or station wagon No Imperials. If car is painted black a 14“ x 14“ roof sign is mandatory.
2.Cars must be stock unless modifications are stated in rules. Cars must have functioning brakes at all times, at least on one axle. Helmet, seat belt, and eye protection must be worn at all times. Any controversies or protests must be brought up during the drivers meeting.
4. Any questions call first If it doesn’t say you can don’t do it. No painting of the frames. All glass, plastic, and interior must be removed before arriving to the event.
6 We have the right to re-inspect, cut, drill any car at any time. If you are caught breaking the rules set here forth you will forfeit any and all winnings and or prizes you are due. Judges decision’s are final. If you stretch a rule you will lose that rule..
7. Any after market parts must be approved by Smash It demolition derby’s you must call and submit pictures for approval. Parts that are not approved before the derby will not be permitted to run.
Frame I Bumpers
1. Trailer hitches and braces must be removed. No plating, pinning, heat treating, stuffing the frame of any kind. Do not paint frame. NO WELDS ON FRAME MAY EXCEED A SINGLE PASS NO WEAVE PASSES OR BUILDING THE WELD UP WILL BE PERMITIED.
2. NO FRAME CREASING or hammering, OR BEATING DOWN THE TOP/BOTTOM OR SIDES OF FRAME IN ANY WAY PERMITTED. You can notch or crease rear frame this is to help rear of car roll not to strengthen the frame. Top Frame seams from firewall forward may be welded top side only with a single bead of weld no weave passes excessive welds will have to be removed. On 79 and older cars you may square off the front of the frame to hard nose the car no shortening of these frames are permitted All unused bolts must be removed from frame
3. Any year bumper permitted. All bumper seams may be welded, Front bumpers may be loaded bumper must be a factory car bumper FRONT AND BACK SKIN IS REQUIRED No homemade bumpers DEC bumpers are permitted ALL WORK TO BE DONE ON THE INSIDE OF THE BUMPER. No spacers of any type permitted between the front bumper and the frame bumpers may be 8“ from top to bottom and 8“ from front to back. The bumper on the rear of the car must be factory (DEC bumpers permitted) no adding of metal to bumper on rear of car will be permitted. Openings in bumper may be closed out. You may use ¼" X 2” X 6” plate to weld from bumper to frame 2 PER BUMPER MOUNTING LOCATION. Rear bumper shocks must appear stock (Must be round pipe or factory shock no square tubing will be permitted) FRONT BUMPER YOU MAY USE ONE NOT BOTH OF FOLLOWING 1. A 10” SHOCK INSIDE FRAME OR 2. A 4" wide x 3/8" thick strap extending from your bumper down one side of the frame and cannot extend any further back than the very front most part of your original factory top-front a-arm bracket factory weld. You are also allowed to wrap this strap 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 be formed but it can not double at any point. Do not abuse this rule you will cut it. This strap must be on side of frame not top or bottom.
4. On the front frame they must be 25" from front of coil pockets on bottom of frame to end of the frame the bumper can not slide over the frame If a frame section needs to be replaced or repaired (rust) you must call first. If the frame has damage in the rear the back 2 body bolts may be moved no more than 6" from factory location. On pre-ran cars if the frame is shortened in the rear and bumper replaced the bumper shocks may not be located closer than 6" from hump plate.
5. All cars are permitted to have 4 4” X 4” patch plates
6. Angles for cross member can't be longer than 5" CROSS MEMBER MUST RUN STRAIGHT ACROSS CAR AND MOUNT IN FACTORY LOCATION ON TRANSMISSION.
7. Body bolts and washers may be changed (1" dia. Bolt max, 3" washer max.) Must start and stop in stock location
8. Bumper can not be lower than 15" or higher than 22" from bottom of bumper. Frame may not be lower than 14".
9. For coil sprung cars you may use a hump plate they may be ¼" X 6" X 22" centered in the hump they will be measured from the top center of the hump and must start no lower than the center of the frame. Hump plate must be at least 2" from rear end housing. On new model GM's (metrics) you may use a ¼ " X 6" X 30" hump plate to be measured the same way. On leaf spring cars you may use a ¼" X 6" X 11" hump plate to be measured the same way. These hump plates may contour the frame or run straight across hump. Hump plate must remain flat plate no bending of this over the top or bottom of frame.
10. You may clip pre-ran cars with a single butt weld with no metal added must use same make and model of frame IE: ford to ford gm to gm No hybrid frames permitted on fords you can not clip a 02 and older with an 03 and newer no exceptions or vice versa.
11 You may cut factory seams at the box and re-weld to tilt the front of new style fords no metal may be added. All factory holes in frame must remain open no welding these holes shut permitted.
12. On 03 and newer fords you may use an 80 and newer ford or GM car steel cradles they must be put in like there factory counterparts only using the factory brackets no other metal may be added A ARM BRACKETS MUST BE 98 AND NEWER FORD BRACKETS ONLY. They must be in factory location and can not be moved forward. You may use a 3" spacer from the bottom of the frame to lower A-arm where the spring goes you may not alter frame in any manner other than attaching factory brackets with a single bead of weld. You can not add any type of spring pockets to frame. All factory holes in front of A arms must be open. Nothing may be welded on top of frame over the holes in front of frame. On 03 and newer fords you can not shorten the front of the frames. A ARMS must be 7 ½” behind the rear factory holes in frame in the front TO THE FRONT EDGE OF A ARMS (THE FACTORY CRUSH POINT ) A ARMS must be from a passenger car no truck or van A ARMS will be permitted
Body / Cage
1. Two 8" X 8" inspection holes must be put in all deck lids one on each side of deck lid within 2" of trunk strapping in center of trunk. Trunk lids must be factory for make and model of car IE: GM to GM ford to ford no pre 1980 deck lids permitted on 80 and newer cars.
2. You may weld, wire, or bolt doors, trunk lids, and or tailgates. If you wire you may use 8 double strands of #9 wire all may go around bumper or frame You may weld, wire, or bolt only. Strapping used for welding may not be stair stepped no excessive overlapping permitted. strapping may be ¼” x 3" flat stock maximum. Tops of door skins may be smashed together and welded ¼” X 3” flat stock be used Deck lids may have two 1" piece of all thread from the floor pan to the deck lid they may Attach to frame by welding the all thread to the frame no more than ½ ( HALF ) way down the side of frame and must be straight up and down And must extend through deck lid , On wagons these may go from the floor pan to rear roof pillars not the roof. You may add 3 bolts per wheel well these bolts can be in wheel well only.
3. No body seam welding will be permitted. Doors can be welded on outside of body only. On pre-ran cars the doors may be repaired back to stock. Rust repair is limited to floor boards and roofs only.
4. You may have a window bar or wire in windshield and rear window if using metal it can be no thicker than 3/8" and no wider than 3" You may use 2 x 2 pipe. not solid. These may not touch the rollover bar. They can be welded to roof no more than 6" from the window area. And welded to deck lid no more than 6"at the rear window area Metal used for this may not exceed 6" in length on roof or deck lid. YOU CAN HAVE A BAR FROM DASH BAR TO ROLL OVER BAR THIS MUST BE 5” FROM FIREWALL IF YOU HAVE QUESTIONS ON THIS CALL
5. You may have 6 bolts on the hood to keep it secure, bolts may be 1" in dia. The front 2 may go all the way through core support You may use a ¼” X 2” x 2” spacer through the core support this may be welded to top of frame and top and bottom of core support only these may not be lower than top of frame. You may also use a 4" x 4" x ¼ plate to weld to top side of frame on the front two body mounts these can weld no farther than 2" on the frame behind the body mount bolts. 1" bolts max.
6. Hoods must be open for inspection. (12" x 12" hole over carburetor) Cars may not be smashed flat If cars are tucked the rear quarter panels on both sides of cars must be 6" higher than the top of the bumper If speaker deck is removed deck lid can attach to package tray they must remain within 2“ of rear of package tray ( behind body bolts on new style fords).
7. Body mounts must remain in place or a 1" gap between body and frame with a stack of washers or spacer of some kind may be used nothing bigger than 3" x 3" permitted NO EXCEPTIONS cars without a space will not be permitted to run. 1” body bolts max. must start and stop in factory location All body mounts must be in stock location.
8. You can add a piece of angle (4" x 4" x ¼"max.) to top of the core support but can be No longer than 32" no other metal permitted on core support. No other metal permitted to be welded to core support.
9. You may have a cage surrounding the drivers compartment with a roll over bar. Bars 6" diam. Max. must be sheet metal to sheet metal only. The dash bar must be 5" from all sheet metal This will be strictly enforced. The bar behind the seat can sit no further back than where the kick panel meets the bench seat and must be at least 5" off the floor measured from the highest part of the floor/ driveshaft tunnel. . No cage components can be farther back than where the kick panel meets the bench seat. Roll over bar and rear down legs are cage components No center bar in cages permitted. You may use 2 down legs to the frame from the rear bar down to frame these must run straight down no angling of the down legs permitted. You may use a floating gas tank protector that comes off the back bar but it can not be wider than 24" The gas tank protector or holder may go all the way back to the sheet metal. Gas tank protector / holder can be welded or bolted to rear sheet metal or package tray with 2 - ½ " X 4“ bolts or 2 -- 3" welds. sheet metal can not be removed. You can have kickers from the front dash bar to the top side of frame behind A arms. 2X2 square tubing Or 2” pipe only no other material may be used they must be within 2" of A arm.
Engine / Transmission
1. Engines may be chained in with 1 chain PER SIDE standard 3/8" chain max. these chains may be no longer than 16" and no more than 2 chain links may be welded to the engine cradle NO CHAINS PERMITTED TO WELD TO FRAME RAILS IN ANY WAY Motor of choice is permitted. Distributor protectors are allowed, Nothing that attaches to engine can be wider than the stacks I.E dist. Protector, engine cradles ect or be used to strengthen cars.
2. Transmissions must be of passenger car origin, transmission coolers may be used, but they must be secured in such a way to prevent injury. Metal or braided lines must be used. No fuel or low-pressure lines may be used. Coolers must be secured in a container in the passenger compartment of the car.
3. Transmission protectors are allowed. They may not attach or brace to the cross member, frame, or any part of the cage components Trans blanket is recommended. OEM trans cross member or 2X 2 X 1/4” max replacement. Must be mounted with at least a 2 inch space from all trans protector components including shifter plate. Skid plates are allowed. They may be one piece from engine to transmission. They may not extend past oil pan or transmission pan. Don’t connect to transmission cross member. Must be 2 inch space. NO bolting or welding the skid plate to the frame.
4. NO WATER COOLERS PERMITTED OR OVERFLOW BOTTLES PERMITTED MUST BE FACTORY CAR RADIATOR OR AN OEM REPLACEMENT ONLY.
1. You may modify tie rods. Valve stem protectors are permitted. A-arms must remain in stock configuration. Any rubber tire permitted. Rear trailing arms may be Home made No bigger than 2 x 2 square tubing or pipe AND MUST MOUNT TO PACKAGE TRAY LIKE FACTORY. Doubling of tires permitted. Bead locks are permitted no bigger than 21” across.
2.Upper A arms may be welded down BY FOLDING DOWN THE A ARM AND WELDING TO FRAME WITH NO METAL ADDED. BAR TYPE A ARMS YOU MAY USE a ¼" X 2" X 2" piece of steel on front and back side of upper a arm and you may plug weld the center of the A Arm DO NOT WELD A ARMS TO FACTORY MOUNTING BRACKETS. lower A-Arms may not be welded. You can change out the new style A-arms For old style ones. Cars do not have to bounce. Solid suspension is allowed. On 98 - 02 A arm mounts you may use a 1” piece of solid rod or factory bar to connect the front and rear brackets this add on may weld to the inner parts af brackets and the top of cup over coil pockets It may not lay on top of frame. On 98-02 frames the cup over spring pockets must remain in factory location these can not be removed or modified.
3. Coil springs in rear may be welded wired or chained to rear end.
4. You may use rear end of choice. Rear end protectors may be used but may not be used to strengthen car in any way and must be on back of rear end.
5. Idler arm must be bolted factory to frame no bolts will be permitted all the way through the frame. Sway bar may be welded to bottom of frame in the factory location you may use a 1 ½ " X 4” bracket or a 2" square tubing or pipe to weld to sway bar to attach to frame. Sway bar must be a factory made car type sway bar. Sway bar ends may be bolted to lower A Arms not welded.
6. Upper and lower A Arms must be factory passenger car type no homemade ones will be permitted.
7. Any watts link brackets not utilized must be removed.
8. You can change coil spring to leaf spring set ups.
Leaf springs: Seven (7) leafs per side. No bigger than ¼” thick and no wider than 2 ½” Spring all may be same length main spring may be anywhere in stack. Or you can have (9) Nine 3/8” leaf springs with a (1") one inch stagger between each spring. Main spring must be on top of leaf pack with no other springs above. Four (4) spring clamps per side no bigger than ½” No taping of springs. Suspension may be locked or welded solid all thread may be used for shocks front A arms may be welded solid. Rear spring shackles: front shackles may not exceed 6” in length rear shackles may be 3” wide ¼” thick and 6” long. Front shackle may be welded to the frame only half way up the frame the rear shackle may be welded all the way to the top of the frame all thread for shocks may go all the way through the floorboards with a 3” washer the floorboards have to be cut. Springs may not be on edge or inside of frame behind rear axle.
***** IF YOU HAMMER / SHAPE / WELD ON FRAME IN ANY MANNER NOT COVERED IN THE RULES YOU WILL NOT BE ABLE TO RUN THERE IS NO FIXING THIS****