1.        Weight classes are 6000, 8000, 10000, 13000, and 16000 lbs.

2.        Contest open to farm tractors with rubber tires. No cut tires, no tire studs or chains permitted. Four wheel drive tractors are permitted if front wheels are disengaged. No dual wheels. All factory wheels must be in place. Maximum tire width is 24.5” in all classes.

3.        All weights must be secured to the tractor. No weight may extend more than 24” beyond the forward most point of hood or front tires. No weights permitted on seat or deck. Any weights or external parts lost while hooked to the sled will be cause for disqualification of the pull. No weights to extend past rear of the rear tire.

4.        Minimum drawbar length is 18” from the center of rear axle to point of hook up. Drawbar must be stationary in all directions. Maximum height is 20” from top of hitching device parallel to the ground. Any vertical clevis will be measured to center of loop.

5.        Drawbar must be equipped with steel hitching device with thickness no less than 1” square or 1-1/8” round stock and no more than 1-1/2” thick square or round stock. A minimum 3” and maximum 3-1/2” diameter hole is required. A cross sectional thickness of 1” square minimum must be maintained at any given point of hitch loop. No bracing above center of rear axle except for complete factory set-up. If above center, it must be cradled.

6.        A 3000 R.P.M. limit on all tractors.

7.        Six cylinder tractors pulling the 6000 and 8000 lb. classes can not have a turbo.   Four cylinder tractors may have a turbo.

8.        10,000 lb. class and up will be permitted add on turbo; turbo must match make and model of tractor or may be no larger than a 3LM 466.  The compressor housing will have a maximum of 2.9” I.D. of intake and 2.0” O.D. outlet.  The exhaust housing will be no larger than 360 with a maximum outlet of 3.06” I.D.

9.        OEM injection pump.

10.     Tractors must have working PTO and hydraulics.

11.     Tractor must be stock agricultural block with no visual engine modifications. Engine must be of original type or factory replacement. Original hood and grill must be in place. 1957 and newer must have rear fenders.

12.     All tractors must be equipped with both rear brakes working. Use of torque converters, automatic shift, etc. is permitted. No industrial tractors or slipper clutches allowed.

13.     No foot cross over and no hand control of foot brakes permitted.

14.     Tractor must be no more than 1000 lbs. below weight class entered.

1.        All contestants enter class at their own risk.

2.        Tractors must be made in 1957 or older.

3.        Tractors will weigh 6,000 or 6,500 pounds (weight to be announced before pull).

4.        Frame must be stock, no extensions, must be stock wheel base.  If modifications are made to the frame for safety during fabrication process, the modifications must be made of steel (no aluminum frame rails).  Modifications are to be made only for safety and must be connected to the stock rear end/transmission housing. No extensions will be permitted.  Must be stock wheel base.

5.        Front end may be homemade, but must retain stock wheel base.  Must be wide front end.

6.        Tractor must be equipped with high back seat.

7.        Hood and grill must be in place with stock appearance as per manufacturer.

8.        Fuel tank must be in front of grill/radiator.

9.        Small block limit of 410 CID, big block limit of 505 CID.

10.     RPM Limits:  Small block—5,000; Big block—5,000.

11.     Maximum of 8 cylinders, no turbos or diesels.  Naturally aspirated, no turbines or supercharges.

12.     Gasoline only. 

13.     All engines must have working air cleaner.

14.     Engine must be governed by MSD Rev Limiter, no extra plugs permitted at the chip location.  Chip must be easily accessible for insertion of a club chip at the discretion of the officials.

15.     All engines must have plastic or electric cooling fans.

16.     A single carburetor with a limit of four barrels.  No fuel injection.

17.     Must have cast iron block and heads.

18.     Spark plugs, engine block and harmonic balancer must be shielded.

19.     Must have a “dead man” throttle.  If the throttle is released, throttle must immediately return to idle.  Carburetor must be equipped with double return spring.

20.     Tractor must have working reverse light.  Light must be illuminated when tractor is in reverse.

21.     Tractor must have neutral start/safety switch.

22.     Auxiliary transmission allowed.  No automatic transmissions.

23.     Maximum tire size:  18.4 x 38, cut tires permitted.  No radials.

24.     All tractors must have a working kill switch.  If tractor is equipped with electric fuel pump, kill switch must also kill power to the electric fuel pump.

25.     Maximum hitch height:  20 inches.

26.     Minimum of 18 inches from center of the rear axle to the hitch point.  Hitch must have 3 inch hole, 1 inch thickness of hitch plate with 1 inch material from hitch point to rear of plate.  No clevis permitted.

27.     Safety bars to prevent the tractor from splitting required.

28.     Clutch and fly wheel must be shielded 360 degrees by ASFI approved bell housing.  All drive shaft couplers or U joints must be shielded 360 degrees by no less than 1/4 inch steel.

29.     Fire extinguisher mandatory.

30.     Helmet required.  Full fire suit required.  Leather boots and gloves (leather or fireproof) required.

31.     Seatbelts and roll cage required (full roll cage or T-bar rollover protection).

32.     All exhaust must exit vertically at least 1 foot above the top of the hood.

33.     Wheelie/anti-tip bars required.  Wheelie bars must not be more than 10” from ground.  Pad must not be more than 10” off ground; pad must be a minimum of 5” x 5” square.  Wheelie bars must support tractor in heaviest class pulled.

34.     Must have sled bumpers.

35.     Rear weights not to extend greater than 6 inches past the furthest point of the rear tire.  Front weight cannot extend more than 11 feet from the center of the rear axle.

36.     Driver must be 18 years of age.  16 – 18 years old permitted with written permission of parent or guardian, and that parent must be present at the track at time of pull. Permission granted only at the discretion of track officials.

37.     All tractors subject to inspection at all times by officials.

38.     All rules to be interpreted by officials.  Any unforeseen problems or oversights will be ruled on by officials on sight.  All general and safety rules apply.  All rulings will be final.  Officials reserve the right to allow or disallow a tractor to compete on the basis of any safety concern or infraction.

39.     All tractors must have fenders.