
USA Standard 59006 8.5 in. Oldsmobile 31Spline 12 Bolt (Factory 3.08 Or 3.23, Or Richmond Gear R&Ps
USA Standard 59006 (ZP PGM8.5O-3-31) Features:
This clutch-type limited slip positraction unit is suitable for daily driven vehicles and mild off-road use. Its clutches work to maintain synchronization between the tires, transferring more torque to the tire that has the best grip while reducing torque transfer to the tire that has less grip.
- Positraction
- Fits 8.5 in. Oldsmobile
- 12 bolt design
- 31 spline
- OEM 3.08 and 3.23 gear sets only
Superior Traction Control for Your Vehicle
USA Standard Gear Differentials and Components are suitable for daily driven vehicles and mild off-road use. We offer different styles of differentials to best fit your application and needs.


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