Note: Vehicles in this division will adhere to all pertinent criteria of Modified tractor
Safety, construction and operation, unless special variations are noted.

A. Body/Chassis
1. The maximum length of the vehicle is no more than 15 feet from centerline of rear
axle to forward most portion of the vehicle including weight racks.
2. The 15 foot from center of rear axle overall rule will apply to all 2WD vehicles with the exception of a 10 inch over-length allowance for cosmetic fiberglass only. No
steel structure, re-enforcement, or steel bumpers allowed past 15 feet. Tow hook to
be consistent with 15 foot rule.
Note: This allowance applies only to pickup truck-style bodies of the following models: 1994
Dodge or newer; 1996 Fords or newer; and 1998 Chevy and/or GMC or newer.
3. Must run a minimum of 14 inch front rims with an automotive or front tractor tire.
4. Any wheelbase is permitted.
5. Front wheel and axle to remain in the visual center of the front wheel well. Maintain minimum of 2 inches of complete original type wheelhouse forward of front wheel. Must be able to see forward most part and rearward most part of tire from a side view.
6. Maximum width of vehicle is 8 feet.
7. Weights are not to extend forward of maximum length stated in Rule A:1 above, nor rearward more than 12 inches from hitch point and must not interfere with hitching and unhitching of vehicle.
8. Any factory production body truck or van is allowed, including passenger-type bodies.
9. Funny car-type body and/or fiberglass body must have escape hatch or doors in top or back of body.
10. Vehicle must have a presentable van/pickup bed with cover or flatbed in place.
11. Chassis (frame) may be truck frame or fabricated frame like Modified tractors.
12. Vehicle must have hood, grill, and fenders in place as intended by manufacturer.
13. Vehicle body style must be or have been available from a dealer as mass produced.
14. Vehicle must maintain original appearance.
15. Vehicle appearance:
a. a. Fiberglass hood scoops, spoilers, fender flares are allowed.
b. b. Allowed to use stock appearing pickup truck and van fiberglass bodies and body parts.
16. Driver must be in original driver compartment.
17. Side doors must be mounted and closed if vehicle was manufactured with doors.
18. Vehicle doors must have a single latch design, allowing the door to be opened from both inside and outside.
19. Flip-top-body type vehicles and vehicles that do not have 2 working doors must have door glass lowered or removed while under green flag.
20. Vehicles with less than stock size window openings must have an escape hatch with a minimum size of 17 inches x 18 inches, or large enough for driver to exit.
Note: Escape hatch will not be counted as a working door.
21. All 2WD vehicles must have a presentable front windshield of glass, plexiglass, or lexan. Factory-tinted glass acceptable. Stained or smoke glass not allowed. Tinted windows that impair track official’s view of drivers compartment not allowed.
22. Vehicles in this division must have vertical bumpers at the rearmost point of the vehicle. Bottom of bumper to be a minimum of 24 inches from the ground. Bumper to extend minimum of 8 inches vertically. Must be rigid.
23. Hood line variance: original hood line should be kept and a 3 inch maximum clearance opening will be allowed for speed equipment.

B. Driveline/Clutch
Note: Engine to clutch to transmission to be constructed like Modified tractor:
1. Torque converters, automatic shifts, etc. are permitted.
2. No electronic, pneumatic or hydraulic device that effects the clutch system allowed.
All staged or variable released clutches of any description prohibited. (This does not
effect slave cylinder for clutch pedal).

C. Driveline Shielding
Without planetary rearend:
1. If planetary rearend is not used, transmission to final drive must be like 4WD trucks.
a. Vehicle must have 3 round metal loops shielding on each drive shaft (2 piece
drive shaft must have six metal loops).
b. 360 degree loop must be a minimum of 3/8 inch aluminum or 5/16 inch steel,
¾ inch wide (or wider) and not more than 2 inches from the shaft in any direction.
c. End loops to be placed no farther than 6 inches from universal joints, with
third loop in center of shaft.
d. May use a solid tube (3/8 inch aluminum or 1/16 inch steel) to meet the above
requirements.
2. Drive shafts between engine and transmission must have solid shielding a minimum
of 3/8 inch aluminum or 5/16 inch steel.
3. Vehicle must have 360 degree metal shield around the universal joints, 3/8 inch
aluminum or 5/16 inch steel, minimum width 6 inches.
Note: If a split design is used, mount as in Rule 6:a. below.
4. Axle and hub bolt shield required, except where planetary final drives are used.
a. Axle and hub bolt shield required, except where planetary final drives are
used.
b. Minimum diameter of axle end or hub bolts to be covered on both front and
rear axles.
c. Mounting shield may not be mounted to axle end or hub bolts.
d. A hole may be installed in center of front shield so lock can be operated as
long as hub end or axle bolts are covered.

5. No counter balancers permitted in driveline.
With planetary rearend:

6. If planetary rearend is used, transmission to final drive must use Modified tractor
shielding.
a. All remaining drive train, excluding additional manual transmissions, must be enclosed in 5/16 inch minimum steel or 3/8 inch aluminum, round. Inside diameter not to exceed 2 inches more than the outside diameter of the largest universal joint, fastened every 6 inches or closer, with 3/8 inch or larger bolts (grade #5), or butt and seam welded, and securely mounted to vehicle’s frames. Applies to all vehicles with exposed drive shaft. No more than ¼ inch of end of driveline shall be visible with driveline shielding in place.
Note: If U-joints are used in any drive shaft application, the shielding must be 5/16 inch steel
or 3/8 inch aluminum with 1/8 inch steel insert in aluminum. The insert must be a
minimum of 6 inches wide.
b. All 2WD vehicles engine/automatic transmission combinations must have
Either:
a. Two front engine mounts, two rear engine mounts and a support saddle
for rear transmission, with ½ inch maximum clearance; OR
b. Two front engine mounts, support saddle at rear of engine, with ½ inch
clearance and a mount at rear of transmission.
Note: This is to prevent engine or transmission from dropping if breakage occurs.
7. 2WD vehicles with a driveshaft of 60 inches or longer must have a minimum 2 inch
nylon strap in the middle of that span to secure the driveshaft shield to the frame.

D. Engine/Engine Limitations
1. Vehicles are limited to a single automotive type engine.
Note: Automobile engine is any engine or its replica available in a passenger car. Maximum
(8) cylinders. A replica to be considered legal must accept and swing a stock crank-
shaft. No diesel engines permitted.
a. At all levels of 2WD competition, a limit of 575 cu. in. and two valves per cylinder.
b. No electronic control devices that change the timing of the vehicle while in motion and/or any traction control devices.

E. Frame
1. Tubular steel frame is allowed.

F. Hitch
1. Vehicle must have floor or bed cover.
2. Vehicle may compete without tailgate or rear door(s) for greater hook point visibility.
3. No portion of vehicle may interfere with sled, chain or hook during pull or while being hooked or unhooked.
4. An area 5 inches wide and 12 inches high immediately above and below the drawbar must be free of all obstructions (including weights, wheelie bars and second drawbars) for ease of hooking and unhooking.
5. Vehicle must have tow hitch on front of vehicle.
a. It may extend no more than 6 inches ahead of the farthermost front portion of the vehicle.
b. It will not be counted when measuring length of vehicle.
c. It must have a 3 inch diameter hole, positioned horizontally.
d. It must be strong enough to push or pull the vehicle at its heaviest weight.
e. It is to be used only for pushing or pulling the vehicle.

G. Safety
1. Vehicle must have a complete firewall with no holes except for controls. Holes not
To exceed ½ inch larger than control.
2. Vehicles that do not have working doors must carry an onboard halon fire system
with a minimum of 3 nozzles located within the driver’s compartment/engine compartment.
3. Flip-top or funny car type vehicles must have body in lowered position before
vehicle may be moved under its own power.
4. Flip-top type bodies must have a safety lock to hold up the body.
5. Body may be raised to start engine and may stay in raised position while engine is running as long as vehicle is not in motion.
6. Operator’s Compartment:
a. No radiator, heat exchanger and/or water hoses allowed inside operators
compartment.
b. If battery is inside operator’s compartment, it must be safely enclosed and
securely fastened.
c. No fuel tanks, fuel pressure gauges, fuel pumps and/or fuel lines inside
operators compartment.
d. If the fuel tank is located behind the driver, a fire barrier is required from
the firewall to the rear of the driver’s seat. (0.060 inch aluminum or steel is acceptable fire barrier material).

H. Tires
Rear tire diameter shall not exceed 143 inch circumference when mounted on an
18 inch rim and inflated to 28 psi. The ground patch is not to exceed 19 inches based
on original tread.