2012 Fremont Speedway
Attica Raceway Park Truck
The following specifications
have been prepared by Fremont Speedway and Attica Raceway Park as guidelines
for the construction of the Dirt Truck Division. No warranty of safety
is expressed or implied as a result of this publication of rules.
These rules are intended as guide and are in no way guarantee against injury
or death to participants, spectators, or others. Anything not covered
by these specifications should be approved by the track officials and placed
in writing. Continuous developments in auto racing and technology
may mandate changes in these specifications. However, it is
our intent to enforce and police these rules throughout the season.
If a change is necessary, technical bulletins will be prepared and distributed
This division was developed
for the fun of racing in a low cost fashion. This requires limits
in various areas to keep competition equal and fair for all participants.
In order to accomplish this, if it doesnt say you can dont! With
the help and consideration of the participants, this can be accomplished.
Try to live within the spirit of the rules. If you have questions,
please contact track officials before you are found illegal
The only trucks to be
used will be Chevy S-10, GMC S-15, Ford Ranger, and Dodge Dakota.
Stock factory steel
bodies only, complete including tailgates.
Inner panels may be
removed below factory beltline.
Door window opening
must remain stock with complete door factory headers.
Windshield and back
window openings must remain stock factory construction. No fillers
in the windshield.
Wiper panel must be
No hood scoops of any
kind. This includes any factory options or up-level vehicles. No holes
Hood crown must remain
Stock bumpers only
which may also be reinforced. No visible crash bars front or rear.
Bumpers must be no
lower than 12 inches. No higher than 16 inches to the bottom.
Top of bumper may not
be any higher than 2 inches from bottom of tailgate.
Wheel opening flanges
must be turned inboard.
Stock appearing rockers
(size & location). No body-side skirts below rockers. No rear skirts.
This measurement from the top of box to bottom of rocker must be no longer
than 32 inches.
Truck must have front
and rear firewall with adequate protection. No holes showing.
Rub rails made of one-inch
square tubing will be allowed. Rails must have ends tapered and be
mounted tight against the body and be free of sharp edges.
Rear deck may be covered
with aluminum or steel and have a hinged lid over the fuel cell.
Rear deck cover must
be flat and flush with top of box. Must run full length of box.
All trucks must be
neatly painted and lettered. The truck must have a number of no less
than 18 inches on each door and roof.
Badly damaged trucks
will have to be repaired. Any sharp edges must be repaired or made smooth.
Spoilers must be mounted
on rear of the bed. Spoiler Blade will be a maximum of 8 inches.
Spoiler Blade must be flat. Maximum of 1 inch high wicker bill. Any spoiler
Spoiler may not extend
past sides of the bed. Spoiler sideboards no larger than 100 sq inches.
Only 3 supports will be allowed.
Stock truck frames
must be used.
Frames must remain
Frame supports may
Frame lighting holes
Frame rails must remain
stock from front to rear.
Lower engine is allowed
may not remove the lower portion of factory cross member. Frame must be
plated in if there is material removed.
Notching frame to lower
seat ok must remain factory frame bottom and lower 2 inches of the side.
Frame must have square tubing put in this area to support frame.
Roll cages will be
6-point design with 1 ½ inch minimum diameter with .095 wall tubing
with a minimum of 3 bars in each door. Each door bar must be single piece
Saddled tubing joints
recommended. If not, gussets required.
Roll cage offset allowed
on right hand side only.
The following wheel
bases will be used:
Suspension, Springs and
Racing coil springs
may be used with a minimum of 5 inch diameter front only.
Weight jack bolts will
be allowed on front coils only.
Rear leaf springs must
remain in stock locations. Using factory front mount. No rear coils.
Rear leaf springs must
retain stock main leaf. Other leafs may be added or subtracted to
maintain proper spring rates. Rear sliders or shackles allowed. Shackles
must be mounted in factory location.
Rear springs will be
measured from center of rear bolt hole to center bolt and from center of
front bolt hole to the center bolt. Must be factory measurement for type
If rear sliders are
used they may be placed within six inches of factory spring mount.
Rear spring cannot
mount any higher than the bottom of the frame.
No coil-overs allowed.
No coil-over eliminators allowed.
Any racing shock may
be used. One shock per wheel.
may be tubular. Upper A-frames may be notched for weight jack bolts and
may run parallel to frame. Upper A-frames must have a connected rear cross
Lower A-frames must
be factory and may have a maximum extension of 2 inches. Extension must
straight out. Lower A-frame must be mounted in factory mount.
Any factory spindle
may be used. No after market or tubular spindles may be used.
No wide 5 hubs.
Rear end torc-link
may be used.
Strap for drive shaft
Drive shaft must be
Steering must remain
stock to frame. Original equipment only. Aluminum tie rods ok.
Minimum of 2 universals
in steering shaft.
Steering quickner may
No quick changes.
9 inch Ford rear end
Floater rear end may
be used. No aluminum. No wide 5 hubs.
Rear ends may be locked.
Maximum rear track
width of 74 inches as measured from outside sidewall of left rear tire
to outside sidewall of right rear tire.
No four link or Z link
Must have 4 wheel brakes
working at all times.
Disk brakes on the
No aluminum calipers.
Dual master cylinder/pedal
assembly with brake adjuster may be used.
No brake shutoffs of
Wheel and Tires
Any 8 inch by 15 inch
steel racing type wheel only.
No aluminum wheels.
Bead locks ok.
Any brand 8 inch racing
tire allowed. NO STREET OR HIGHWAY TIRES ALLOWED.
Wheels and tires must
pass tire gauge.
Any V-8 or 6 cylinder
engine may be used.
Any engine may be used
in any truck ( For example, a Chevy engine in a Ford truck ).
Engine setback #1 spark
plug will be no farther back than the center of ball joint.
No aluminum heads or
Only one Holley 4412
- 2 barrel carburetor allowed Must pass Holley No-Go gage. Choke plate
must be removed. No Dominator or Predator style. No Webers.
Adapter plate ok.
(Remember no hood scoops)
Aluminum intakes ok.
Exhaust may not protrude
past side sheet metal.
No crank trigger ignition.
112535 or 113035 required.
Radiator and Fan
Radiators must be in
front of engine.
Overflow can must be
Shroud must cover upper
180 degrees of the fan. Shroud must be metal and completely cover fan.
Electric fan ok.
No oil coolers allowed
in drivers compartment.
Any OEM transmission
may be used. Must be stock appearing. Automatic or standard
No quick change transmissions.
No Bert or Brinn type
No dog clutches.
No direct drives of
any kind. Front pump drives OK.
Any stock clutch or
multi-disk may be used.
Fuel cell in steel
can is mandatory.
Must be mounted behind
rear axle with minimum of 2 2 inch by 1/8 inch steel straps around fuel
Fuel filler may not
extend outside of body.
No electric fuel pumps.
Fuel lines must run
Pump gasoline or straight
alcohol (methanol) only.
No nitro or nitrous
Helmets required and
must pass inspection. (Snell 2000 Recommended).
Flame retardant driving
Flame retardant driving
Fireproof driving shoes
Competition type seat
belts must be used. Lap belt and shoulder harness must be 3 inches in width
minimum. Belts cannot be over 3 years old.
Aluminum racing seat
is required. Seat must be mounted to roll cage in at least 4 places,
2 on the back and 2 on the bottom.
Must have approved
Roll Bar padding required.
Safety Bars required
in front of driver.
All trucks will be
equipped with a small dry chemical fire extinguisher mounted (not taped)
within drivers reach.
Battery cannot be located
in drivers compartment. Battery must be on inside of frame rails.
All trucks must have
tow hooks, front and rear.
Any trucks found illegal
may forfeit points; money earned or may be suspended.
Any illegal parts may
be confiscated for the season.
Rules may be added
or changed as needed to better the division.
and track officials decision is final.
Transponders And Radios
All trucks must have transponders and
they must be mounted 100 inches
behind leading edge of the front bumper.
All drivers must use raceceiver radios.