High Performance Powerlok posi differential. The Powerlok is one of the most aggressive and strongest limited slips ever designed. It  uses a two-piece case and six forged internal gears for added strength. The Power-Lok uses a ramping-clutch design to become more aggressive as  tire-spin increases. The composite clutches provide long life and high  performance. All units are Rebuildable and come with a one year warranty against manufacturing defects.

Application: 1960-1972 Chrysler 8.75" Rearend (uses 25590/25520 Bearings & Races)

Axle Spline: 30

Compatible Gear Ratios: Any