11/20/2025
This is without a doubt the baddest C6 Corvette differential on the planet! Fresh off the build bench and ready to ship to the customer. The RPM Transmissions Stage X ZR1 3.42 Differential. This unit is assembled with 100% brand new components. No core parts are used in this build. The Stage X features all of our Stage 4 upgrades, those upgrades include a Wavetrac Differentials torque biasing limited slip differential, Driveshaft Shop 300M billet steel stub axles, RPM Transmissions billet aluminum pinion support and Performance Metal micro polished Motive Gear 3.42 ring and pinion gears. Our Stage X package adds the incredibly robust ZR1 differential case, which has considerably more reinforcement webbing and is cast from a much stronger alloy than even the Z06 differential case, our own in-house CNC machined 6061 billet aluminum right and left side covers along with our billet rear differential cover. This unit is also fitted with our trans/differential brace kit. This differential build has been punished in every form of racing at over 2000rwhp. It has ran 6s in the 1/4 mile in multiple different race cars and withstood over 250mph blasts in 1/2 mile, mile and land speed combinations. If you need the absolute baddest unit on the planet, give us a call and get your Stage X build rolling!
