The Eaton Posi is a clutch-type limited-slip differential built around race-bred carbon friction discs in a fully rebuildable housing. Net-forged internal gears add strength, and the clutch preload can be tuned by swapping spring packs so bias suits the application. It operates automatically and smoothly and is backed by service kits for discs, shims, and springs. This unit is configured for the GM 8.2in BOP axle.
- Type: Clutch-type limited-slip (Eaton Posi)
- Axle: GM 8.2in BOP
- Ring gear diameter: 8.2in
- Axle shaft diameter: 1.25in
- Spline count: 28-spline
- Gear ratio: 3.36 and up
- Rebuildable: Yes, preload tunable with Eaton Posi service kits
- Part number: 19674-010
Axle Fitment
- This unit is built for the GM 8.2in BOP axle (28-spline, 8.2in ring gear, 3.36 and up ratios). It is found in GM 8.2in BOP (Buick, Olds, Pontiac) rear axles. Confirm your axle and spline count.
FAQ
What does the Eaton Posi do?
It is a clutch-type limited-slip using carbon friction discs in a rebuildable housing, with tunable preload.
Which axle and spline count does part number 19674-010 fit?
It fits the GM 8.2in BOP axle, 28-spline, 8.2in ring gear, 3.36 and up. Confirm your axle and spline count before ordering.
Can the Eaton Posi be rebuilt?
Yes. It is fully rebuildable, and preload can be tuned by swapping spring packs using Eaton Posi service kits.
Does it need a friction modifier?
As a clutch-type limited-slip, it uses a friction-modifier gear oil additive per Eaton's guidance.

