28 SPLINE, REQUIRES CARRIER BEARING KIT $49.00
Duragrip Positraction for GM 8.5" and 8.6" with 28 spline axles. For 2.73 and up. The Duragrip uses a nodular case and forged 4130 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.