Differential Ring and Pinion (12 Bolt)

7690
147266
147267
147268
7691

Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer our ring and pinions for easy setup, superior strength, quality, and our vast ratio selection. Motive Gear produces the industry's widest range of OEM replacement ring and pinions. Engineered to the highest standards, every Motive Gear product goes through rigid quality control processes in our in-house lab. In combination with Motive Gear's performance and axle divisions: Motive Gear Performance and TEN Factory, there simply isn't a better value in drivetrain components.

GM12-373X Application Notes

Warranty

1 Year or 50,000 Miles

GM12-373X Specifications

App Model GM 8.875 Truck
Cover Bolt Quantity 12
Differential Carrier Break 2.76 to 3.42 Ratio
Differential Case Design Type GM 8.875 Truck
Gear Ratio 3.73
Pinion Gear Tooth Quantity 11
Pinion Shaft Diameter 1.438 (Inch)
Pinion Spline Count 30
Ring Gear Bolt Quantity 12
Ring Gear Material 8620 Steel
Ring Gear Outside Diameter 8.875 (Inch)
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Taxonomy A LD Differential, LD Differential, LD Differential
Taxonomy B Ring and Pinion, Ring and Pinion, Ring and Pinion
Taxonomy C Rear, Rear, Rear
Taxonomy D 3.73, 3.73, 3.73
Where to buy

Vehicle Applications

  • 1969 – 1974 Chevrolet Blazer

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1982 Chevrolet C10

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1965 – 1967 Chevrolet C10 Panel

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1964 Chevrolet C10 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
    • 1963-1964 Models Require a 30 Spline Pinion Yoke
  • 1965 – 1974 Chevrolet C10 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1982 Chevrolet C10 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet C20

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1969 – 1974 Chevrolet C20 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1973 – 1981 Chevrolet C20 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet G10

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1964 Chevrolet G10 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
    • 1963-1964 Models Require a 30 Spline Pinion Yoke
  • 1965 – 1974 Chevrolet G10 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet G20

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 Chevrolet G20 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet K10

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1964 Chevrolet K10 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
    • 1963-1964 Models Require a 30 Spline Pinion Yoke
  • 1965 – 1974 Chevrolet K10 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1982 Chevrolet K10 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet K20

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1969 – 1974 Chevrolet K20 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1973 – 1981 Chevrolet K20 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet K5 Blazer

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1980 Chevrolet P10

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1965 – 1967 Chevrolet P10 Series

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 Chevrolet P10 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1981 Chevrolet P20

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1966 – 1967 Chevrolet P20 Series

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1968 – 1974 Chevrolet P20 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1965 – 1966 Chevrolet Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC C15

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC C15 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC C15/C1500 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC C15/C1500 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1982 GMC C1500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1981 GMC C1500 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC C25

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC C25 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1969 – 1974 GMC C25/C2500 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1969 – 1974 GMC C25/C2500 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1981 GMC C2500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1981 GMC C2500 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1965 – 1966 GMC G1000 Series

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC G15

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC G15/G1500 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1981 GMC G1500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC G25

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC G25/G2500 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1981 GMC G2500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1970 – 1981 GMC Jimmy

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1966 GMC K1000 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC K15

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC K15 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1966 – 1974 GMC K15/K1500 Pickup

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC K15/K1500 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1982 GMC K1500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1982 GMC K1500 Suburban

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC P15

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC P15/P1500 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1980 GMC P1500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1975 – 1978 GMC P25

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1967 – 1974 GMC P25/P2500 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1979 – 1981 GMC P2500

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1965 – 1966 GMC PB1000 Series

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1966 GMC PB15 Series

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1965 GMC PB1500 Series

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1966 GMC PB2500 Van

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
  • 1980 – 1982 Plymouth Badger

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 3.73 Ratio
    • Thick Ring Gear
    • Requires a 2.76 to 3.42 Ratio Carrier
    • 1963-1964 Models Require a 30 Spline Pinion Yoke

Installation

Installation Instructions
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