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Posi limited-slip differential

The Eaton Posi limited-slip differential is the perfect way to control traction in street rods, light duty pickups and all types of tarmac running race cars. Featuring pyrolytic carbon clutches, rebuildable design, net-forged gears for added strength and seamless, automatic operation.
Limited slip differential
Race-bred, pyrolytic carbon clutches
Automatic operation
Smooth engagement in forward and reverse
Rebuildable design
Tunable via various spring packs (a.k.a. pre-loads)


  • Race-bred, pyrolytic carbon clutches
  • Tunable via various spring packs (a.k.a. pre-loads)
  • Rebuildable design
  • Works in forward and reverse
  • Net forged gears for added strength
  • Smooth, automatic engagement
  • Optimized torque bias ratios deliver maximum vehicle acceleration and handling

Prevent wheel slip before it starts

The Eaton Posi limited slip differential (also know as Positraction) prevents 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 the clamping load on the clutch packs increases. That causes the chatter-free clutch packs to grab and transfer power to the other wheel.

New differential selector!

Need help finding the right differential for your vehicle? With just a few clicks our new product selector will point you in the right direction.
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