1963-1982 GM 8.875" 12 Bolt Truck - Ring and Pinion Gear Set
GM12T-308-RA
Ring & Pinion Gear Set
Rigid Axle
GM 8.875" 12 Bolt Truck Ring and Pinion Set
Description
Package Includes:
(1) Ring and Pinion Gear Set (Choose Ratio Above)
- *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 carrier. Contact support if you need help figuring out what carrier you have.
- 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!
- 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!
Applications
- Chevrolet Blazer (1969-1974)
- Chevrolet C10 (1975-1982)
- Chevrolet C10 Panel (1965-1967)
- Chevrolet C10 Pickup (1964-1974)
- Chevrolet C10 Suburban (1967-1982)
- Chevrolet C20 (1975-1981)
- Chevrolet C20 Pickup (1969-1974)
- Chevrolet C20 Suburban (1973-1981)
- Chevrolet G10 (1975-1981)
- Chevrolet G10 Van (1964-1974)
- Chevrolet G20 (1975-1981)
- Chevrolet G20 Van (1967-1974)
- Chevrolet K10 (1975-1981)
- Chevrolet K10 Pickup (1964-1974)
- Chevrolet K10 Suburban (1967-1982)
- Chevrolet K20 (1975-1981)
- Chevrolet K20 Pickup (1969-1974)
- Chevrolet K20 Suburban (1973-1981)
- Chevrolet K5 Blazer (1975-1981)
- Chevrolet P10 (1975-1980)
- Chevrolet P10 Series (1965-1967)
- Chevrolet P10 Van (1967-1974)
- Chevrolet P20 (1975-1981)
- Chevrolet P20 Series (1966-1967)
- Chevrolet P20 Van (1968-1974)
- Chevrolet Suburban (1965-1966)
- GMC C15 (1975-1978)
- GMC C15 Suburban (1975-1978)
- GMC C15/C1500 Pickup (1967-1974)
- GMC C15/C1500 Suburban (1967-1974)
- GMC C1500 (1979-1982)
- GMC C1500 Suburban (1979-1981)
- GMC C25 (1975-1978)
- GMC C25 Suburban (1975-1978)
- GMC C25/C2500 Pickup (1969-1974)
- GMC C25/C2500 Suburban (1969-1974)
- GMC C2500 (1979-1981)
- GMC C2500 Suburban (1979-1981)
- GMC G1000 Series (1965-1966)
- GMC G15 (1975-1978)
- GMC G15/G1500 Van (1967-1974)
- GMC G1500 (1979-1981)
- GMC G25 (1975-1978)
- GMC G25/G2500 Van (1967-1974)
- GMC G2500 (1979-1981)
- GMC Jimmy (1970-1981)
- GMC K1000 Pickup (1966)
- GMC K15 (1975-1978)
- GMC K15 Suburban (1975-1978)
- GMC K15/K1500 Pickup (1966-1974)
- GMC K15/K1500 Suburban (1967-1974)
- GMC K1500 (1979-1982)
- GMC K1500 Suburban (1979-1982)
- GMC P15 (1975-1978)
- GMC P15/P1500 Van (1967-1974)
- GMC P1500 (1979-1980)
- GMC P25 (1975-1978)
- GMC P25/P2500 Van (1967-1974)
- GMC P2500 (1979-1981)
- GMC PB1000 Series (1965-1966)
- GMC PB15 Series (1966)
- GMC PB1500 Series (1965)
- GMC PB2500 Van (1966)
Specifics
- Differential Model: GM 8.875" 12 Bolt Truck
- Cover Bolt Quantity: 12
- Carrier Breaks: 2.73 / 2.76-3.42 / 3.73
- 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: 1.438"
- Pinion Spline: 30
