Package Includes:

(1) Ring and Pinion Gear Set (Choose Ratio Above)
(1) Rear Master Bearing Install Kit

- *Note: The GM 8.875" 12 Bolt Car differential has carrier breaks at 2.73 / 3.07-3.90 / 4.10. 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 carrier. Contact support if you need help figuring out what carrier you have.

- If you added horsepower, or you just want better stock performance out of your GM 8.875" 12 Bolt Car Differential, our gear set will get the job done. If you need help deciding on a gear ratio, please give us a call and we can help based on your needs!

- Rigid Axle's aftermarket ring and pinion gear sets are made from heat treated 8620 steel. Our aftermarket gear set is made using a five-cut, face milled manufacturing process. Once set up correctly, this will give a square contact pattern on the drive and coast side of each tooth. We are proud of our ring and pinion lines, and you will be too!

- Remember to properly break in your new gear set! Click here for instructions!

- Our Master overhaul kits come with everything you need to replace, modify, or rebuild your differential. This will allow you to get the job done quicker, and cheaper at the end of the day. Rigid Axle master bearing install kits include:

• Both (Inner & Outer) Pinion Bearings and Races
• Carrier Bearings and Races
• Pinion and Carrier Shims
• Pinion Seal
• Pinion Nut
• Ring Gear Bolts
• Crush Sleeve
• Complete Shims
• Threadlocker
• RTV Sealant or Cover Gasket

- Rigid Axle is proud to offer our customers a full line of differential, transfer case, and transmission parts. We specialize in complete rebuild kits for domestic cars and trucks. Give us a call with your year, make, and model and we'll build you a custom kit for your build!

• Buick Centurion (1971-1972)
• Buick Electra (1965-1972)
• Buick Estate Wagon (1971-1972)
• Buick Gran Sport (1965-1967)
• Buick GS (1970-1972)
• Buick GS 350 (1968-1969)
• Buick GS 400 (1968-1969)
• Buick GS 455 (1970-1972)
• Buick LeSabre (1971-1972)
• Buick Skylark (1971-1972)
• Buick Special (1965-1969)
• Buick Sportwagon (1964-1972)
• Chevrolet Bel Air (1965-1970)
• Chevrolet Camaro (1967-1972)
• Chevrolet Caprice (1966-1972)
• Chevrolet Chevelle (1964-1972)
• Chevrolet Chevy II (1965-1968)
• Chevrolet El Camino (1965-1972)
• Chevrolet Impala (1965-1972)
• Chevrolet Malibu (1965-1967)
• Chevrolet Monte Carlo (1970-1972)
• Chevrolet Nova (1969-1972)
• GMC Sprint (1971-1972)
• Oldsmobile 442 (1971-1971)
• Oldsmobile 98 (1965-1972)
• Oldsmobile Cutlass (1971-1972)
• Oldsmobile Cutlass Supreme (1971-1972)
• Oldsmobile Delmont 88 (1967-1968)
• Oldsmobile Delta 88 (1965-1972)
• Oldsmobile F85 (1965-1972)
• Oldsmobile Jetstar 88 (1965-1966)
• Oldsmobile Jetstar I (1965-1965)
• Oldsmobile Starfire (1965-1966)
• Oldsmobile Vista Cruiser (1967-1972)
• Pontiac Acadian (1965-1971)
• Pontiac Beaumont (1965-1969)
• Pontiac Bonneville (1965-1972)
• Pontiac Catalina (1965-1972)
• Pontiac Executive (1967-1970)
• Pontiac Firebird (1967-1972)
• Pontiac Grand Prix (1970-1972)
• Pontiac Grand Safari (1971-1972)
• Pontiac Grandville (1971-1972)
• Pontiac GTO (1965-1972)
• Pontiac Laurentian (1965-1972)
• Pontiac LeMans (1965-1972)
• Pontiac Parisienne (1965-1972)
• Pontiac Strato-Chief (1965-1970)
• Pontiac Tempest (1970)

• Differential Model: GM 8.875" 12 Bolt Car
• Cover Bolt Quantity: 12
• Carrier Breaks: 2.73 / 3.07-3.90 / 4.10
• Ring Gear Bolt Quantity: 12
• Ring Gear Bolt Size: 3/8 X 24 RH
• Ring Gear Diameter: 8.875"
• Ring Gear Material: 8620 Steel
• Ring Gear Rotation: Standard
• Pinion Diameter: 1.626"
• Pinion Spline: 30