#Superstock tractor pulls driver#

Other than a product of an SFI-approved manufacturer are exempt from certification as long as they are NTPA stamped.ħ) No lightening holes allowed on the transmission face of the bell housing. All straps must be securely fastened and the blanket must be secure against the rear face of the engine block.Ħ) The flywheel, clutch and pressure plate components must be SFI approved and numbered components.

If an aluminum flywheel is used it must be SFI SPEC 1.1.Ģ) Positively no gray cast metal allowed in any flywheel and clutch component.ģ) Competition vehicle is required to have an SFI SPEC 4.2 bell-housing blanket (an expired renewal date on an SFI SPEC 4.2 bell housing blanket will be accepted).Ĥ) Bell housing blanket must meet the following construction criteria 17 inches wide and long enough to wrap around the bell housing with at least 6 inches overlap, secured with six 2 inch wide nylon web straps with a steel D-ring on one end and sewn the length of the blanket (except for the overlap area) and long enough to pass back through steel D-ring and be tied in a saddle cinch along with four 2 inch nylon web retaining straps each at the front and back of the blanket.ĥ) Bell housing blanket straps are to be fastened forward and rear of the clutch / flywheel assembly. The flywheels must be made of steel with the following mechanical properties tensile strength of 60,000 psi, yield strength of 40,000 psi. Clutches and Flywheelsġ) Competition vehicle is required to use an SFI SPEC 1.1 or SFI 1.2 steel plate or steel billet flywheel. A drawbar, which has provisions to be made shorter than legal length, is not acceptable as a legal drawbar.ģ) Drawbar height is not to exceed 20 inches. The drawbar hold up device is to be within 6 inches maximum forward of hook point.Ģ) Drawbars cannot be shorter than 18 inches. Any vehicle with the drawbar hold up device above the centerline of the rear wheels must have a single pin breakaway type (slide out) drawbar. Drawbarsġ) All drawbars shall be constructed so that in the event of drawbar breakage, the drawbar supports do no pull from a top link or brace above the centerline of the rear wheels of the vehicle.

#Superstock tractor pulls driver#

The 5 point driver restraint harness must be a quick release design and be securely fastened during competition.Ģ) All competing vehicles must be equipped with working rear wheel brakes. Current year NTPA clutch certification paperwork along with either an NTPA roll cage certification paperwork or Illinois Tractor Pullers Association roll cage certification will be accepted.Ģ) Light Super Stock entries shall compete at the following weights:ġ) All competitors are required to utilize a 5 point driver restraint harness and driver seat mounted to the roll cage structure independent of the tractor chassis.

A current year Outlaw’s Truck and Tractor Pulling Association or Illinois Tractor Pullers Association notarized statement will be accepted.

A form may be obtained from the Illiana Pullers Assoc. A new notarized form / statement must be on file each year before competition vehicle is allowed to compete. 1) All competitors are required to have on file with Illiana Pullers Association before competing in the 6000 Light Super Stock class a notarized form / statement stating competitor’s clutch, flywheel and bell housing components are SFI approved and competitor’s roll cage meets SFI specification 47.1 or 47.2.