INDEX T
G / H
CR73	THREAD ENGAGEMENT INSPECTION HOLE
CR74	THROTTLE LINKAGE
CR75	TOWING RING / HOOK
CR76	TOW VEHICLE
CR77	TRANSMISSION
CR78	TYRES

ARTICLE:
CR73: THREAD ENGAGEMENT INSPECTION HOLE
All bars which incorporate the use of rod ends must have a 3mm inspection hole drilled a minimum of 1.5 times the rod-end shank diameter along the bar to allow scrutineers to check for adequate thread engagement.
CR74: THROTTLE LINKAGE
Regardless of class, each vehicle must have a foot throttle incorporating a positive-acting return spring attached directly to the carburettor throttle arm. A positive stop or over-ride prevention must be used to keep linkage from passing over centre and sticking in an open position. In addition to return springs, some means of manually returning the throttle to a closed position by use of the foot must be installed on all vehicles using an other than standard or altered linkage system. All vehicles fitted with superchargers/blowers must have some means of returning the throttle to a closed position by use of the foot. Choke cables and brazed or welded fittings on steel cable are not allowed.
CR75: TOWING RING / HOOK
It is recommended that all cars have some kind of towing ring or hook affixed to the front of the vehicle so as to help reduce the time required to clear the track should a vehicle failure occur.
CR76: TOW VEHICLE
Any vehicle used as a tow car must have the competition number displayed prominently on the windscreen. Crew members must be inside the cab or completely inside the bed of the truck. Nobody is to be seated on the tailgate, standing on running boards or otherwise. They are all to be seated completely inside the vehicle.
CR77: TRANSMISSION
77.1	All vehicles in competition must be equipped with reverse gear.
77.2	Air shifter bottles must be stamped with Dot-1800 pound rating (minimum) and be securely mounted, i.e. no tie-wraps or hose clamps.
CR78: TYRES
78.1	Tyres will be visually checked for condition, pressure, etc. and must be considered safe by the scrutineer prior to any runs by the vehicle. Implement tyres are prohibited and all street tyres must have a minimum of 1mm tread depth over 100% of the tread area at the completion of the day's racing.
78.2	All street tyres must be Dot approved with grooves made by the tyre manufacturer.
78.3	All vehicles capable of exceeding 260kph are required to have front tyres specifically built for Drag Racing use, i.e. Goodyear or Mickey Thompson Front Runners etc.)
78.4	Any make or type of road tyre, racing tyre or drag slick (see class requirements) is permitted on vehicles slower than 260kph provided the speed rating of the tyre is adequate for that particular vehicle's performance.
78.5	Under no circumstances will rethreaded tyres be allowed on any vehicle.
78.6	Either steel or good condition rubber valve stem caps are required on all wheels and tyres.
78.7	Tyre pressure should be as per manufacturer's recommended pressure guidelines.
78.8	Dot approved tyres with no grooves will be classified as slicks.