C2/C3

Inner Yoke Shaft - Part Number 50245-KIT

The C2 and C3 Corvettes’ differential comes factory with a 17-spline inner flange yoke that can be prone to failure. This super strong 300M version has the spline updated to a stronger 30-tooth involute profile, using a standard Corvette  posi-traction that is modified by slightly increasing the bore size and using a 30-spline axle gear that is common to the 12-bolt GM posi-traction units. With this change, a standard GM c-clip is used to retain the yoke shafts.

Next-Step Corvette Axles - Part Number 50230-KIT

This Corvette Rear Axle Kit is for the C2 and C3 (Circa: 1963-1982)  Corvettes that originally have 17-spline axles. This kit replaces the wheel flange axle, universal joint flange, and the 4-bolt u-joint flange on the tubular rear axle drive shaft. The spline on the axle is increased to a more modern 31-spline with a 1.333” major diameter.

Inner Yoke Shafts for Converted 12-Bolt Posi - Part Number 50248-KIT

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.

Rear Axle Half Shafts - Part Number 39810

3" O.D. x .083" chromoly tube with 13-7/8" centers. Produced with 4130 forged steel weld yokes and 1350 series lubed for life universal joints.

Part Number 19670 - Corvette Eaton Posi-Traction 17-spline for 3.08 to 3.90 ratios     Part Number 19670-MOD - Corvette Eaton Posi-Traction - Modified 1963 - 1979 Corvette, 3.08 to 3.90 ratio - modified for 30-spline

C4

Billet Rear Hub Shaft - Part Number 50225-KIT

This is a fix for the C4 (1988 - 1996) Corvette rear hub shaft/yoke that is prone to failure. We have increased the spline to 32-tooth, and upgraded the material to an aircraft alloy steel. Then, we through-harden them for maximum strength.

C5/C6

Axle Half-Shafts - Part Number 50220   A direct replacement for GM P/N 10311201. These shafts are a plug-in fit between the constant velocity joints without any additional machining. Manufactured from 300M steel. For 1997 - 2013	Differential Output Shaft - Part Number 50210   A direct replacement for GM P/N 88893900. Designed with generous radius curvature to eliminate stress risers. Manufactured from 300M steel. MW hardening processes further increases load capacity and durability of this shaft. Built with turbo applications in mind. For 1997 - 2013