Description
Factory open differentials sacrifice traction for simplicity—costing you consistency on the track and control on the street. The Duragrip Differential transforms your GM 8.5/8.6 rear end into a true limited-slip unit, delivering improved power delivery to both wheels under acceleration while maintaining the smooth on/off-ramp behavior you need for responsive handling. Whether you’re running drag radials or carving corners, this bolt-on upgrade eliminates wheel spin and maximizes grip without the complexity of a full locker.
- Duragrip Posi clutch
- 30-spline design
- GM 10-bolt housing
- 8.5-inch diameter
- Cast iron construction
- 2.73 ratio and up compatible
- Sold individually
- Bolt-on installation
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