Detroit Locker Eaton Posi - 61-80 GM Truck 12 Bolt 30-Spline DET19587-010

Differential - Eaton Posi - 30 Spline - 2.76 to 3.42 Ratio - Limited Slip - Steel - Natural - GM 12-Bolt - 8.875 in - GM Fullsize Truck 1961-80 - Each

Drivetrain, Differentials and Rear-End Components, Differentials and Differential Carriers by DETROIT LOCKER-TRACTECH