Revised: 2008

Union Threshermen Incorporated

Town of Union

Waupaca County, Wisconsin

P.O. Box 71

Manawa, WI 54949

SYMCO UNION THRESHERMEN'S NATIONAL ANTIQUE TRACTOR PULLING RULES

  1. Pure Stock Antique I-1938 or older 3200,3500,4000,4500,5000,6000,7000
  2. Pure Stock Antique II-1939-1953 3000,3500,4000,4500,5000,6000,7000,8000
  3. Improved Antique I-1938 or older 3500,4000,4750,6000,7000,Unlimited
  4. Improved Antique II-1939-1953 3500,4250,5000,6000,7000,Unlimited
  5. Modified 4000,5500,7000
  6. Judges have rights to inspect under hoods and curtains.
  7. Only one pull per tractor and must be operated in safe manner on and off the track at all times. ( MUST SUPPLY YOUR OWN CLEVIS)
  8. Anyone tampering with another tractor will be disqualified.
  9. Driver must remain in seat with one hand on steering wheel no jumping or bouncing but leaning will be allowed
  10. No crawlers, tire chains or duals.
  11. Steel wheels will pull last in class and one extension rims allowed.
  12. Ridgid draw bar must not exceed 20 inches in height or be closer than 18 inches to center of axle
  13. Tractors must stop if flagged.
  14. Tractors(88,44,G,M,UB,U Moline's)can not pull under 5000.
  15. Tractors without wheelie bars will follow the track Judges rule for height and must be kept under control. If not you will be stopped and measurement will be taken at that point.
  16. Any tractor violating track boundaries or anything falls off tractor before pin is pulled you will be disqualified.
  17. Any driver 14 to 18 years old must have parent's signature and Tractor Safety Class with no Exceptions.
  18. Engine will be controlled by throttle lever with positive stop only. No Vise grips, strings, wires, or foot feed allowed.
  19. Tractors 5000 and under limited to 14.9 tires. 5001 and up 18.4 Tire size in all classes.
  20. No using torque amplifiers, or shift on the go.
  21. Add on weights not exceed 24" ahead of the front casting, or 24"behind center of rear axle, or beyond original platform. Weights must not interfere with hooking the tractor,(Pure stock tractors wheel weights only see pure stock rules on weights
  22. ALL PULLING CLASSES WILL REMAIN AT 3 to 3.5mph NO EXCEPTIONS!!!!!!

PURE STOCK

  1. Engine: stock block, head, Manifold, carb, no add on parts not in original parts book, no electronic ignitions, stock coil only, stock hp and rpms. Tractors may be put on Dyno.
  2. Tractors must have original, or as close to original size tires, Rims, Cut down steel is ok.
  3. Original hitch and drawbar (no pulling eyes, clevis with spacers, or bent-up drawbars) Hook Point must be 13"-14" From end of PTO, or no closer than 30" from center of axle, allowances will be made on certain models
  4. Tractors must have stock appearance.
  5. No cut or sharpened tires.
  6. Must have original air cleaner, if one used.
  7. No weight brackets, or non- original weights(any wheel weight are allowed if placed on wheels and securely fastened.
  8. ANY TRACTORS MAY BE DYNO'ED AND RPM LIMITS WILL BE ENFORCED!!!!!!!!

IMPROVED STOCK

  1. Engine: stock block, tractor carb, original transmission, rear end, sheet metal ect.
  2. No front cut tires.
  3. Wheelie bars, kill switch and fenders recommended, and encouraged. If not applicable Judges will rule height of front end and under control.
    4. 4.20% Over on RPMs will be allowed, All tractors rpm limits enforced.
  4. No home built manifolds, or headers(o.e. replacement only).
  5. No electric fuel pumps.

MODIFIED (MUST BE 18 OR OLDER TO PULL MODIFIED)

  1. Must run stock block and head of the original manufacturer, Transmission, Rear End, sheet metal ect.
  2. Any cut tires are allowed.
  3. Wheelie bars, fenders,and kill switch are mandatory!!!!
  4. RPMS over 20% must have safety equipment (Safety blanket, Scatter shield, fan shroud or side shields ct.)
  5. Tire 14.9 below,18.4 max 5001 and up

HOPE TO SEE YOU NEXT YEAR HAVE FUN AND BE SAFE THANK YOU FROM THE UNION THRESHERMAN.

ANY QUESTIONS CALL BRIAN LETTAU (920)-596-3455 Or RANDY ELSNER (920)-596-3787