Richmond · 49-0278-1
Part #: 49-0278-1
UPC: 698231705674
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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
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!
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 8.5" 8.6" 3.42 RG
Application summary
| Year | Make / model |
|---|---|
| 1973-1975 | Buick Apollo |
| 1971-1973 | Buick Centurion |
| 1973-1977 | Buick Century |
| 1991-1996 | Buick Commercial Chassis |
| 1971-1990 | Buick Electra |
| 1971-1981 | Buick Estate Wagon |
| 1971-1985 | Buick LeSabre |
| 2004-2007 | Buick Rainier |
| 1973-1977 | Buick Regal |
| 1984-1987 | Buick Regal |
| 1977-1978 | Buick Riviera |
| 1991-1996 | Buick Roadmaster |
| 1970-1972 | Buick Skylark |
| 1975-1979 | Buick Skylark |
| 1987-1992 | Cadillac Brougham |
| 1977-1984 | Cadillac DeVille |
| 1999-2000 | Cadillac Escalade |
| 2002-2013 | Cadillac Escalade |
| 2003-2013 | Cadillac Escalade ESV |
| 2002-2013 | Cadillac Escalade EXT |
| 1977-1987 | Cadillac Fleetwood |
| 1993-1996 | Cadillac Fleetwood |
| 1976-1979 | Cadillac Seville |
| 2007-2013 | Chevrolet Avalanche |
| 2002-2006 | Chevrolet Avalanche 1500 |
| 1970-1975 | Chevrolet Bel Air |
| 1970-1972 | Chevrolet Biscayne |
| 1987-2005 | Chevrolet Blazer |
| 1970-1972 | Chevrolet Brookwood |
| 1977-1986 | Chevrolet C10 |
| 1977-1986 | Chevrolet C10 Suburban |
| 1982-1986 | Chevrolet C15 |
| 1988-1999 | Chevrolet C1500 |
| 1992-1999 | Chevrolet C1500 Suburban |
| 1970-1981 | Chevrolet Camaro |
| 1970-1996 | Chevrolet Caprice |
| 1973 | Chevrolet Chevelle |
| 2007-2013 | Chevrolet Colorado |
| 1973-1977 | Chevrolet El Camino |
| 1996-2013 | Chevrolet Express 1500 |
| 1978-1995 | Chevrolet G10 |
| 1978-1995 | Chevrolet G20 |
| 1971-1985 | Chevrolet Impala |
| 1994-1996 | Chevrolet Impala |
| 1977-1986 | Chevrolet K10 |
| 1977-1986 | Chevrolet K10 Suburban |
| 1988-1999 | Chevrolet K1500 |
| 1993-1999 | Chevrolet K1500 Suburban |
| 1977-1986 | Chevrolet K20 |
| 1977-1986 | Chevrolet K20 Suburban |
| 1988-1991 | Chevrolet K2500 |
| 1975-1986 | Chevrolet K5 Blazer |
| 1975 | Chevrolet Malibu |
| 1973-1977 | Chevrolet Monte Carlo |
| 1971-1979 | Chevrolet Nova |
| 1987 | Chevrolet R10 |
| 1987-1988 | Chevrolet R10 Suburban |
| 1989-1991 | Chevrolet R1500 Suburban |
| 1994-2004 | Chevrolet S10 |
| 1983-1994 | Chevrolet S10 Blazer |
| 1999-2020 | Chevrolet Silverado 1500 |
| 2007 | Chevrolet Silverado 1500 Classic |
| 2001-2003 | Chevrolet Silverado 1500 HD |
| 2005-2006 | Chevrolet Silverado 1500 HD |
| 2007 | Chevrolet Silverado 1500 HD Classic |
| 2003-2006 | Chevrolet SSR |
| 1995-2013 | Chevrolet Suburban 1500 |
Specifications
- GTIN
- 00698231705674
- Weight
- 17.5 lb
- Height
- 5.25 in
- Length
- 15 in
- Width
- 11 in
- EO
- Legal US
- Life cycle
- Available to Order
- AAM brand code
- RIC
- Warehouse brand code
- RIC
- AAIA brand code
- BCLJ
Attributes
- App/Model
- GM 8.625"
- Axle Type
- GM 8.5 in.
- California Proposition 65
- WARNING: Cancer - www.P65Warnings.ca.gov
- Cover Bolt Quantity
- 10
- Differential Carrier Break
- 2.76 Ratio and Higher
- Differential Case Design Type
- GM 8.625
- Gear Ratio
- 3.42
- Mounting Location
- Rear
- Pinion Gear Tooth Quantity
- 12
- Pinion Shaft Diameter
- 1.626
- Pinion Spline Count
- 30
- Position
- Rear
- Ratio
- 3.42
- Ring & Pinion Gear Ratio
- 3.42
- Ring Gear Bolt Quantity
- 10
- Ring Gear Diameter
- 8.5
- Ring Gear Material
- 8620 Steel
- Ring Gear Rotation
- Standard
- Ring Gear Tooth Quantity
- 41
- Ring and Pinion Gear Ratio
- 3.42
- Taxonomy
- GM 8.5/GM 8.625
- Taxonomy A
- LD Differential
- Taxonomy B
- Ring and Pinions
- Taxonomy C
- Rear
- Taxonomy D
- 3.42
- Title
- Differential Ring and Pinion
Fitment status
Select a vehicle or engine to see whether this part applies to your application.
Application summary
1973-1975 Buick Apollo; 1971-1973 Buick Centurion; 1973-1977 Buick Century; 1991-1996 Buick Commercial Chassis; 1971-1990 Buick Electra; 1971-1981 Buick Estate Wagon; 1971-1985 Buick LeSabre; 2004-2007 Buick Rainier; 1973-1977 Buick Regal; 1984-1987 Buick Regal; 1977-1978 Buick Riviera; 1991-1996 Buick Roadmaster; 1970-1972 Buick Skylark; 1975-1979 Buick Skylark; 1987-1992 Cadillac Brougham; 1977-1984 Cadillac DeVille; 1999-2000 Cadillac Escalade; 2002-2013 Cadillac Escalade; 2003-2013 Cadillac Escalade ESV; 2002-2013 Cadillac Escalade EXT; 1977-1987 Cadillac Fleetwood; 1993-1996 Cadillac Fleetwood; 1976-1979 Cadillac Seville; 2007-2013 Chevrolet Avalanche; 2002-2006 Chevrolet Avalanche 1500; 1970-1975 Chevrolet Bel Air; 1970-1972 Chevrolet Biscayne; 1987-2005 Chevrolet Blazer; 1970-1972 Chevrolet Brookwood; 1977-1986 Chevrolet C10; 1977-1986 Chevrolet C10 Suburban; 1982-1986 Chevrolet C15; 1988-1999 Chevrolet C1500; 1992-1999 Chevrolet C1500 Suburban; 1970-1981 Chevrolet Camaro; 1970-1996 Chevrolet Caprice; 1973 Chevrolet Chevelle; 2007-2013 Chevrolet Colorado; 1973-1977 Chevrolet El Camino; 1996-2013 Chevrolet Express 1500; 1978-1995 Chevrolet G10; 1978-1995 Chevrolet G20; 1971-1985 Chevrolet Impala; 1994-1996 Chevrolet Impala; 1977-1986 Chevrolet K10; 1977-1986 Chevrolet K10 Suburban; 1988-1999 Chevrolet K1500; 1993-1999 Chevrolet K1500 Suburban; 1977-1986 Chevrolet K20; 1977-1986 Chevrolet K20 Suburban; 1988-1991 Chevrolet K2500; 1975-1986 Chevrolet K5 Blazer; 1975 Chevrolet Malibu; 1973-1977 Chevrolet Monte Carlo; 1971-1979 Chevrolet Nova; 1987 Chevrolet R10; 1987-1988 Chevrolet R10 Suburban; 1989-1991 Chevrolet R1500 Suburban; 1994-2004 Chevrolet S10; 1983-1994 Chevrolet S10 Blazer; 1999-2020 Chevrolet Silverado 1500; 2007 Chevrolet Silverado 1500 Classic; 2001-2003 Chevrolet Silverado 1500 HD; 2005-2006 Chevrolet Silverado 1500 HD; 2007 Chevrolet Silverado 1500 HD Classic; 2003-2006 Chevrolet SSR; 1995-2013 Chevrolet Suburban 1500; ...
Equivalent Parts
Richmond 49-0278-1
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