Vermont Tractor Pullers Association
Garden Tractor Modified
Driver Eligibility:
1. General Rules apply.
2. Drivers must be at least 16 years old with parental
consent.
3. Helmet and fire suits are MANDATORY.
Tractor:
4. Tractors may be homemade, but are limited to 8 feet in
length from the center of the rear axle to the furthest
forward point including wheels. Maximum width of 6’6”
from outside to outside.
5. Engines will be limited as follows:
a. Automotive engines 2500cc, 4 cylinder limit.
b. Non-automotive type engines (snowmobile,
motorcycle, boat engines, etc.) can run multiple engine
combination with no limit on number of cylinders, but
a total combined 1500cc limit.
6. Ignition System- any type.
7. Fuel System- Carburetors or fuel injection (piston type
engines). Carburetors only (rotary type engines).
No oxidizers (i.e. nitrous oxide) or pressurized tanks,
8. Fuel Type- Gasoline, diesel, fuel, alcohol, octane
boosters, and lead additives allowed. No other fuels.
9. Maximum Tire Size: 31x15.5x15
10. Tire tread pattern may be bar or turf type. No
paddle tires. Alterations allowed.
11. Shielding requirements:
a. 1/16” metal shields must be provided over belts,
chains, fans, etc.
b. 1/8” steel shields or an approved safety blanket
must be provided 360 degrees around clutches (the
shields must cover the area from the front of the bell
housing a minimum of 4” to the rear) and automatic
transmissions.
c. 1/8” steel shields or approved safety blanket must
be provided 360 degrees around automatic
transmissions.
d. 1/8” metal shields must be provided on both sides
of engines. Each shield must be as long as the block
and must extend from the top of the oil pan to the
underside of the cylinders.
12. Tractors must have fenders to protect the driver from
the rear tires.
13. Tractors with automatic transmissions shall be
equipped with positive lockout to prevent accidental
engagement of reverse gear. Safety start switch so
tractor cannot be started in gear.
14. The hook hole in the drawbar must be a minimum of
2” diameter. A minimum of 3/8” material around
diameter of hole. Hitches rigid in all directions with 3”
on either side of the hitch as dead man zone from
hitch to top of seat. No weights in the dead man
zone, only the kill switch centered approximately 10-12
inches above the hitch in this area only.
15. Roll cages optional.
16. Wheelie bars must be rigid in all directions and able
to support the tractor and driver in the heaviest class.
Each skid shoe must be minimum of 2”x3” or the use
5” round wheels is allowed. Tractor must have 2 skid
shoes or 2 wheels. The wheelie bars must be a
minimum of 5” from rear most part of tire and maximum
of 10” The wheelie bars must also be a maximum of
5” inches from ground to bottom of skid shoes or
wheels. A bumper bar 6” in length vertical in rear
position is required. (Refer to diagram at back of
book.) Weights on back of tractor must be contained up
to 1”
before the end of the wheelie bars.
17. ALL TRACTORS MUST HAVE a minimum of a 2 lb.
fire extinguisher fully charged on board in reach of
operator. A functional gauge on all fire extinguishers is
required.