These newer Pro Stock, MW designed 9-1/2" Richmond ratios are in stock and ready for shipment in specially prepared complete thirdmembers. The assemblies feature the Supra-Fin processing that reduces friction and eliminates material transfer normally found in the break-in-process. Sub-Zero thermo-treatment eliminates the possibility of retained austenite. The gears feature a 9-1/2" diameter 32-spline input (the same size as transmissions) eliminating an obvious weak link in the drive system. Ceramic double angular contact pinion support bearing are lighter, reducing friction and adding rigidity to the pinion. Special angular contact spool bearings are a huge advantage in reducing friction and maintaining correct ring gear position. Installation - Service instructions can be found on Service Bulletin #0038.

MW Low Friction Thirdmembers qualify for our exchange / rebuild program.