CLASSES; 7500-8000 #

TIRES; 18.4 x 38 maximum radials allowed

AGE OF DRIVER 18 years or older

AGE OF TRACTOR 1972 and older but including total run of that model.

FUEL Diesel fuel only .

Must be stock appearing for that make and model. Must be from same manufacturer and must bolt in stock location without modification. Examples: IH 806 may use 856 407; JD 4010 may use 4020 engine; and others to be approved by the committee.

HEADS Cast iron heads only. Must be from same manufacturer. No over head cams allowed.

RPMs; Open

Draw bars must not exceed 20 inches in height or less than 18 inches from center of axle to hooking point. No part of draw bar may extend rearward beyond point of hook. Draw bars must be stationary in all directions. No clevis

Must be for that make and model and must maintain stock appearance and dimension. front ends may be homemade but must maintain stock appearing wheelbase.

Maximum length 12’ from center of rear axle to the furthest point forward, including weights.

SAFETY EQUIPMENT Wheelie bars, kill switches, fire extinguishers, fenders, side shields, SFI flywheels and pressure plates, scatter blanket or steel shields, no steel fans

One injector pump, must be the same style, stock appearing, in the same location, and deliver fuel from that location for that model. OEM stock intake and exhaust manifolds for that series engine, alteration for turbo mounting allowed. Turbo must not extend through hood. One single stage turbo allowed

IH 806 may use 856 407 CI, JD 4010 may use 4020 404 CI, AC D21 must use D21 426 CI, Case 930 must use 930 401 CI, MM 705 & MF 97 must use 504 CI. ALL ENGINES MUST BE 531 CUBIC INCHES OR SMALLER .

1. Exhaust bolt pattern no larger than 2.750 in x 3. 250 in .
2. No altering of a housing to accommodate a smaller base; e.g. T-18A95 with a smaller base welded to it