The C2 and C3 Corvettes’ differential comes factory with a 17-spline inner flange yoke that can be prone to failure. Many owners have chosen to upgrade the rear by modifying a stock Corvette case to use a GM 12-Bolt Posi and gear, but some of these systems still use the cast bolt-on universal flange yoke. These one-piece, super strong 300M inner yoke shafts eliminate the bolt connection and significantly increase the strength and quality. The splines have been updated to a stronger 30-tooth involute profile. They are produced with a through-hardening process and shot peened. The inner yoke shafts feature billet u-joint caps (p/n 50237) that attach with studs and 12-point ARP nuts. A standard GM c-clip or the included machinable MW c-clips (part number 50247) can used to retain the yoke shafts. Sold as a pair.

**NOTE** This kit will only work with C2/C3 Corvettes that have been modified to use a GM 12-Bolt posi & gear. If your Corvette has a stock differential, use p/n 50245-KIT inner yoke shafts.