Powertrax No-Slip GM Chevy 8.5" 28 Spline Differential Automatic Positraction Ring and Pinions - Ford Dana 60 Rear 1967-1997 Interchange: 707321X

Interchange: 707321X

GMC Sierra Denali (1999-2008)

Pontiac Laurentian (1977-1981)

Ford F-150 1/2 Ton (2008-2010)

2014-2017 GMC Sierra

Powertrax No-Slip GM Chevy 8.5" 28 Spline Differential Automatic Positraction Ring and Pinions - Ford Dana 60 Rear 1967-1997 Interchange: 707321XPowertrax No Slip Traction System Description Package Includes: (1) Powertrax No Slip Positraction Kit The POWERTRAX TRACTION SYSTEMS are the latest design in traction adding differential technology. It combines the smooth operation of a limited slip differential, with the traction performance of a locking differential. A precise synchronization mechanism eliminates the ratcheting sounds typical of other locking differentials. Special gear and spring