Pontiac GTO Differential Pinion Seal Replacement

1.938 Shaft Diameter 2.762 Bore Diameter 2.766 Outside Diameter Seal 0.500 Width

8.2 in. 10 Bolt GM 8.2 in.; Buick; Oldsmobile and Pontiac; Rear~GM 8.5 in. for Oldsmobile 442 and Cutlass; Rear

8.875 in. 12 Bolt GM 12 Bolt Passenger Car

with 8.2 (in) Ring Gear with GMC Axle with BOP-Type Axle

FAG Global Number 413 2983 100 1.938" Shaft

1.645 Shaft Diameter 2.656 Bore Diameter 2.660 Outside Diameter Seal 0.400 Width

with 8.875 (in) Ring Gear with GMC Axle

FAG Global Number 413 2709 100 1.645" Shaft

GM 8.2 in.; Buick; Oldsmobile and Pontiac

8.6 in. 10 Bolt; 9.25 in. 12 Bolt Oldsmobile Dropout Style~Pinion seal; 3.066 in. O.D.

2.890 in. O.D.~Oldsmobile Dropout Style

7.75 in. 9 Bolt GM 7.75 in.; IRS