SKU: DET19587-010
MPN: 19587-010
The Eaton Posi - 61-80 GM Truck 12 Bolt 30-Spline differential is an ideal choice for truck builders and off-road enthusiasts looking to upgrade their classic General Motors rear axles. Designed specifically for 1961–1980 GM pickup trucks and Blazers with a 12-bolt housing, this locking differential enhances traction by powering both rear wheels simultaneously under load.
This locking differential utilizes a mechanical clutch-pack design that automatically engages both axle shafts when one wheel encounters resistance or begins to slip. The 30-spline configuration ensures compatibility with factory GM 12-bolt axles, allowing for a straightforward installation without the need for custom fabrication.
Ideal for modified trucks, whether turbocharged, supercharged, or diesel-swapped, the Eaton Posi is built to withstand high torque loads. Its compact footprint and weight maintain factory carrier spacing and suspension geometry, making it a practical choice for enthusiasts seeking reliable performance on both pavement and off-road trails.
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