Ring & pinion gears are the differential’s critical point of power transfer, and they’re one of the simplest performance modifications to complete on a vehicle. The Ring & Pinion Gears are excellent OE replacements for on street applications or off-road use.
Posi units prevent wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. When torque input increases, clamping load on the clutch packs increases. That causes the chatter-free clutch packs to grab and transfer power to the other wheel. Posi units are rebuildable.
Muscle cars, hot rods and mild off-road vehicles should look to limited-slip differentials for their traction answers. And the fact is, Posi units are virtually bulletproof.

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