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Motive Gear / GM12-308

Part #: GM12-308
UPC: 698231020418

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Description: Precision Differential Ring and Pinion maintains correct power distribution to a; This Differential Ring and Pinion is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

Description:

Description

Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner's circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.

Features & benefits

  • Designed for compatibility with OEM-specified gear oil viscosities, ensuring correct lubrication under all operating conditions.
  • Heat-treated alloy steel construction withstands peak torque demands of loaded commercial trucks, preventing gear tooth fatigue and breakage.
  • OEM-spec gear ratios preserve intended vehicle speed, performance, and fuel economy characteristics.
  • Precision fits to carrier housing bores eliminate shimming uncertainty and simplify installation for experienced drivetrain technicians.
  • Precision-machined gears and tight backlash tolerances ensure smooth power transfer and efficient torque distribution between axles.

Information

RP GM 8.875" 3.08 TRUCK MG

Application summary

Year Make / model
1964-1970 Buick Wildcat
1964-1972 Chevrolet Bel Air
1964-1972 Chevrolet Biscayne
1969-1974 Chevrolet Blazer
1975-1986 Chevrolet C10
1963-1967 Chevrolet C10 Panel
1963-1974 Chevrolet C10 Pickup
1967-1986 Chevrolet C10 Suburban
1967-1972 Chevrolet Camaro
1966-1970 Chevrolet Caprice
1964-1972 Chevrolet Chevelle
1964-1968 Chevrolet Chevy II
1965-1972 Chevrolet El Camino
1975-1987 Chevrolet G10
1964-1974 Chevrolet G10 Van
1975-1981 Chevrolet G20
1967-1974 Chevrolet G20 Van
1964-1972 Chevrolet Impala
1975-1986 Chevrolet K10
1963-1974 Chevrolet K10 Pickup
1967-1986 Chevrolet K10 Suburban
1975-1986 Chevrolet K5 Blazer
1970-1972 Chevrolet Monte Carlo
1969-1972 Chevrolet Nova
1987 Chevrolet R10 Suburban
1963-1966 Chevrolet Suburban
1987 Chevrolet V10 Suburban
1975-1978 GMC C15
1975-1978 GMC C15 Suburban
1967-1974 GMC C15/C1500 Pickup
1968-1974 GMC C15/C1500 Suburban
1979-1986 GMC C1500
1979-1986 GMC C1500 Suburban
1963-1966 GMC G1000 Series
1975-1978 GMC G15
1967-1974 GMC G15/G1500 Van
1979-1987 GMC G1500
1975-1978 GMC G25
1967-1974 GMC G25/G2500 Van
1979-1981 GMC G2500
1966 GMC K1000
1966 GMC K1000 Pickup
1975-1978 GMC K15
1975-1978 GMC K15 Suburban
1966-1974 GMC K15/K1500 Pickup
1967-1974 GMC K15/K1500 Suburban
1979-1986 GMC K1500
1979-1986 GMC K1500 Suburban
1987 GMC R1500 Suburban
1963-1966 GMC Suburban
1987 GMC V1500 Suburban
1969-1972 Pontiac Firebird
1970-1972 Pontiac GTO

Specifications

GTIN
00698231020418
Weight
15.35 lb
Height
5.25 in
Length
15 in
Width
11 in
EO
Legal US
Life cycle
Available to Order
AAM brand code
MOT
Warehouse brand code
MOT
AAIA brand code
BHHD

Attributes

App/Model
GM 8.875 Truck (12-Bolt Truck)
Axle Type
GM 8.875 in.
California Proposition 65
WARNING: Cancer - www.P65Warnings.ca.gov
Cover Bolt Quantity
12
Differential Carrier Break
2.76 to 3.42 Ratio
Differential Case Design Type
GM 8.875 Truck
Gear Ratio
3.08
Mounting Location
Rear
Pinion Gear Tooth Quantity
13
Pinion Shaft Diameter
1.438
Pinion Spline Count
30
Position
Rear
Ratio
3.08
Ring Gear Bolt Quantity
12
Ring Gear Diameter
8.875
Ring Gear Material
8620 Steel
Ring Gear Outside Diameter
8.875
Ring Gear Rotation
Standard
Ring Gear Tooth Quantity
40
Ring and Pinion Gear Ratio
3.08
Taxonomy
GM 8.875 Truck
Taxonomy A
LD Differential
Taxonomy B
Ring and Pinions
Taxonomy C
Rear
Taxonomy D
3.08
Title
Differential Ring and Pinion

Fitment status

Select a vehicle or engine to see whether this part applies to your application.

Application summary

1964-1970 Buick Wildcat; 1964-1972 Chevrolet Bel Air; 1964-1972 Chevrolet Biscayne; 1969-1974 Chevrolet Blazer; 1975-1986 Chevrolet C10; 1963-1967 Chevrolet C10 Panel; 1963-1974 Chevrolet C10 Pickup; 1967-1986 Chevrolet C10 Suburban; 1967-1972 Chevrolet Camaro; 1966-1970 Chevrolet Caprice; 1964-1972 Chevrolet Chevelle; 1964-1968 Chevrolet Chevy II; 1965-1972 Chevrolet El Camino; 1975-1987 Chevrolet G10; 1964-1974 Chevrolet G10 Van; 1975-1981 Chevrolet G20; 1967-1974 Chevrolet G20 Van; 1964-1972 Chevrolet Impala; 1975-1986 Chevrolet K10; 1963-1974 Chevrolet K10 Pickup; 1967-1986 Chevrolet K10 Suburban; 1975-1986 Chevrolet K5 Blazer; 1970-1972 Chevrolet Monte Carlo; 1969-1972 Chevrolet Nova; 1987 Chevrolet R10 Suburban; 1963-1966 Chevrolet Suburban; 1987 Chevrolet V10 Suburban; 1975-1978 GMC C15; 1975-1978 GMC C15 Suburban; 1967-1974 GMC C15/C1500 Pickup; 1968-1974 GMC C15/C1500 Suburban; 1979-1986 GMC C1500; 1979-1986 GMC C1500 Suburban; 1963-1966 GMC G1000 Series; 1975-1978 GMC G15; 1967-1974 GMC G15/G1500 Van; 1979-1987 GMC G1500; 1975-1978 GMC G25; 1967-1974 GMC G25/G2500 Van; 1979-1981 GMC G2500; 1966 GMC K1000; 1966 GMC K1000 Pickup; 1975-1978 GMC K15; 1975-1978 GMC K15 Suburban; 1966-1974 GMC K15/K1500 Pickup; 1967-1974 GMC K15/K1500 Suburban; 1979-1986 GMC K1500; 1979-1986 GMC K1500 Suburban; 1987 GMC R1500 Suburban; 1963-1966 GMC Suburban; 1987 GMC V1500 Suburban; 1969-1972 Pontiac Firebird; 1970-1972 Pontiac GTO
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