General Rules:  All Classes  3500# to 8500#  Classes Effective 1-1-07
This is not a rule change - only a clarification:  NO front mount fuel tanks, chrome
or aluminum ANYTHING allowed in Farm Stock.
1.  Drivers must be 14 years of age or older.  Those under 18 years of age must
     have parental/guardian permission.
2.   Drivers must stay on the seat of the tractor at all times.  Hands must be on the steering
      wheel, hand clutch, or throttle.  Feet must stay on platform at all times during the pull.
3.  Any tractor or puller found to be unsafe or illegal may be disqualified or barred from hooking.
     No alcoholic beverages will be permitted during pull.
4.  Any tractor parts falling off (weights, fly covers, etc) will hooked to the sled will be disqualified. fly wheel, covers, etc.) while hooked to sled will be disqualified.
6.  Wheelie bars are required.  Materials used must be strong enough to support the weight of the
     tractor when a jack is placed under the pad.  Each pad must be at minimum of 5" square.
     The pad must extend past the edge of the tire diameter by a minimum of 2".  The distance
     between the wheelie bars must be at minimum 24" from the outside edge of each pad.
7.  Any tractor can pull in a maximum of three classes (one hook per class).  Promoter can
     add amount of hooks per pull.
8.  Draw bars will have a maximum height of 20" and no less than 18" from center of axle to hook
     point.   Must be stationary in all directions.  The hitch hold must allow hook point to flow
     freely and be parallel with the ground.
9.  Weights must not extend rearward beyond rear tires and cannot be more than 11 feet from the
    center of the rear axle to furthest point forward.  Must be stock wheelbase--cannot be altered.
10.  No radial tires.  No steel wheels.  Two wheel drive only.  No duals.
11.  Tractors must be naturally aspirated.  All tractors must have a working safety kill switch.
12.  Gas, diesel or LP fuels only.  No alcohol or nitrous oxide fuels maybe used in tractors. Gas
      is allowed with a maximum of 750 specific gravity.  All tractors are subject to random fuel
      checks.  Tractors manufactured to use diesel fuel only cannot be converted to gas or LP.
13.  Fan-guards on all tractors (side shield or fan shield). Mandatory.
14.  RPMs and MPH will be checked from 1/2 track until the pull is completed.  RPMs allowed
      will be determined by the M&W chart.  Any tractor not listed will use manufacturer's data.
      20% margin of error will be permitted for all classes. Track judge will have final decision.
15.  Tractors must have the Stock Ag engine, frames, transmission, rear end and axle housing
       or manufacturer's  replacement.  No adapter plates allowed for engine.  Transmission -
       front end to bolt up.
      Super Farm Stock Class Only -- Radiators, front end, fuel tanks, etc., must be original location.
      Front tire must be Ag tires and 14" or larger.
      CLASSES:
         --Massey 33, Oliver 77, and like size tractors are not allowed below 4000#.
         --Oliver 88, Farmall M, Massey 44, MM-U, JD-G, Case-C/D, JD- JD-A and up and like size
           tractors not allowed in classes below 4500#.
16.  Enhanced electrical systems permitted in all classes.  No rev limited allowed.
17.  Heads, blocks (jugs), manifolds must be the same manufacturer as the crank house and frame.
       Replacement manufacturer allowed.
18.  Any Ag type carburetor allowed.  Must be single barrel and throat and draft direction as originally
      manufactured.
19.  Spacer plates and girdles will have no more than 1" above and below the center line of the
      crank shaft 2" total.
20.  Any jerking of sled or side stepping clutch will result in disqualification.
21.  All USAP pulls will run only USAP classes and weight of scales will be at zero tolerance.
22.  Judge's or promoter's decision is final at all times during the pull.
23.  Tractor must stay in bounds at all times.