1963-1982 GM 8.875" 12 Bolt Truck - Ring and Pinion Gear Set w/ Master Bearing Kit Ratio::3.73 Thick Pontiac Ventura (1976 - 1977)

Pontiac Ventura (1976 - 1977)

2006-2010 Hummer H3

giving you a true locking/locked differential

Chevrolet / Chevy Express Van 2500 3/4 Ton (1996-1997)

New Process 136GM - RPO Code: NP3

1963-1982 GM 8.875" 12 Bolt Truck - Ring and Pinion Gear Set w/ Master Bearing Kit Ratio::3.73 Thick Pontiac Ventura (1976 - 1977)GM 8. 875" 12 Bolt Truck Gear Package Description Package Includes: (1) Ring and Pinion Gear Set (Choose Ratio Above) (1) Differential Master Install Kit *Note: 1963 1964 12 Bolt Truck applications require a 30 spline yoke. *Note: The GM 8. 875" 12 Bolt Truck differential has carrier breaks at 2. 73 2. 76 3. 42 3. 73. That means if you have 3. 42 gears from the factory, and would like to run a 4. 56 ratio, you will need to buy a thick gear, or a new