Willall WR35SRK GTR Mainshaft Repair Kit



A large number of GTR transmissions have had the Front Wheel Drive gear come loose and damage the shaft due to the stock retaining circlip springing out of position.

Signs of the circlip failing (partially) are a noisy operation of the transmission, which you will hear at idle, and this is due to the bearing pictured now taking part of the main shaft thrust as the shaft moves forward and allows the transmission gears to rub against their opposing synchro hub. Transmissions in this state are not far from total failure....

This is where Willall Racing designed the WR35SRK (Shaft Repair Kit) that uses a rifle bolt principle to internally brace the mainshaft and allow a high torque, high clamping load solution to hold the entire gearset together. Machined from Chrome Moly and with very careful design put into its oil pathways and 'anti-whip' structure WR35SRK slides inside the original Main shaft and provides a proper bolt up clamp where the existing circlip groove has been destroyed.

Precision machined and with the correct taper to make it an interference fit inside the factory Main shaft WR35SK doesn’t require the gear cluster to be disassembled for fitment, which makes the repair a quick and easy process once the transmission is out of the vehicle.

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