Super Improved Rules  2007, but adopted in 2005
       *See General Rules That Apply to All Tractors

  1. Tractors 1967 and older or continuous production models.

  2. All Tractors must have wheelie bars for safety. No devises hook ring with 3” hole.

  3. Weights: Farthest most point cannot be more than 11 feet forward from center of rear axle.

  4. Tires & Rims: Maximum tire size 2 sizes width over factory option specifications; any rim width. No steel wheels, Two wheel drive only, No duals.  Cuts allowed on tires.

  5. All tractors must have a positive throttle stop with a working governor in the stock location.

  6. Speed: includes any gear, any speed and shifting of T?A’s are allowed.

  7. Tractors manufactured to use diesel fuel only cannot be converted to gas or LP. No Turbos or 4 wheel drive.

  8. Tractors must have the stock appearing engine, frames, transmission, rear end and axle housing or manufacturer’s replacement.

  9. Enhanced electrical systems permitted in all classes.

  10. Any agricultural carburetor allowed. Number of barrels, throats, venture, etc must be that of the manufacturer for that make. Exception: John Deere may run updated (duplex) heads, manifolds and carburetors stock or manufactured replacement manifolds permitted.

  11. No increased height in any tractors (ie; deck plates, shims, girdles) except for stock gaskets

Weight Classes for    Super Improved 3000-3500-4000-4500-5500-6500-7500-8500-9500

Northern Pullers Farm Class Rules 2005

  1. Tractors must have working stock air cleaner.

  2. Tractors must have stock carburetors.

  3. Tractors must have and pull from stock draw bar, no more than 20 inches to top and at least 18 Inches from rear of draw pin hole to center of axle. Any clevis can be used.

  4. Tractors must pull at no more than 3.5 MPH 2nd horn will sound at disqualification.

  5. Tractors will run at stock engine speeds.

  6. Tractors will have no more than one face tire size over largest stock option and standard rim diameters.

  7. Tractors Can pull in more than one stock class by adding weights.

  8. Front end loaders or belly mowers can be on tractor

  9. Weight classes will be no more than three per event with the pull manager picking the three classes from the following classes.

                                                                                    3000-3700-3500-4000-4500-5500-6500-7500-8500-9500

Rules for Turbo Class

  1. Must keep the head and block that is stock with the tractor

  2. Single turbo with inlet not more than 26’ and outlet not more than 2.9’. If exposed turbo must have a safety shield, if a turbo charger manifold is not made for a tractor one can be manufactured no waste gate or variable geometry turbos

  3. Turboed Diesel fuel tractors only, no water injection

  4. Wheelie bars must be in place

  5. Factory style narrow front ends are allowed

  6. Stock frame, Transmissions, rear ends and axels only

  7. Must have a air shut off with hookup ring accessible at the rear of tractor

  8. Rear Fenders are required and must support weight of the driver

  9. Tractors must run at stock RPM

  10. Tire size -no larger than 20.8 X 38

  11. Speed limit maximum 12MPH

  12. Chassis including weights can be no longer than 13 feet from center of rear axel to most for ward point.

  13. Shift on the go is allowed

  14. Weight Classes 6500-7500-8500-9500

  15. The 5 year rule changes is not in effect for Turbo class