RTS M86 Differential, Gear Ring and Pinion 3.91:1, For Ford Falcon FPV, XR6 Turbo 4.0L, XR8

RTS ring and pinion sets are manufactured to exceed OEM specification that are required for todays modern performance vehicles. The design, tooling, material selection and heat-treatment recipes are all controlled by the RTS manufacturing factory to produce a cost-alternative ring and pinion set that does not sacrifice quality. They are available in a wide variety of gear ratios for your modern Holden Commodore or Ford Falcon with M75, M78, M80, M86 or ZF differentials.