PowerTrax Grip LS Differential 28 Spline Steel GM 10 Bolt - 8.5" 4122MEDBK For automatic transmissions use #1483

For automatic transmissions use #1483 and #1491 or #1844

Higher output with up to 135mJ of spark energy

4-1/4 in Radius

Each distributor is supplied with a high-quality rotor and distributor cap

M-6303-M52 Forged Steel Cross-Plane Crankshaft

PowerTrax Grip LS Differential 28 Spline Steel GM 10 Bolt - 8.5" 4122MEDBK For automatic transmissions use #1483For vehicles that are driven daily, the Powertrax No Slip Traction System is the latest design in quiet traction adding differential technology. It combines the automatic street friendly smooth operation of a limited slip differential with the traction performance of a locking differential. The Powertrax No Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip