Stage 3 Upgrade Kit, 30 Spline Mainshaft Viper Spec, includes:
-30 Spline Viper Mainshaft (shortened to fit F Body Tail)
-Tail Housing, machined with larger bushing and seal
-30 Spline 1350 Driveshaft Yoke
-Corrrect reluctor speedo ring.
We can give $75.00 refund if you return your old (useable) tail houisng & reluctor ring
Add to Stage 2 Kit to handle 750-800 HP.