Excel / XL-5640
Part #: XL-5640
UPC: 698231527535
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Description: Precision Differential Pinion Shaft maintains correct power distribution to all; This Differential Pinion Shaft 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
Unleash your vehicle’s full potential with our Performance Differential Pinion Shaft—engineered for racers, builders, and off-road enthusiasts who push the limits. Built to handle extreme torque loads and aggressive driving conditions, this shaft ensures your ring-and-pinion stay perfectly aligned under maximum stress.
Constructed from premium alloy steel and heat-treated for superior hardness, it delivers the toughness needed for high-horsepower applications and prolonged abuse. The precision-ground surfaces reduce internal friction and ensure smooth gear mesh, translating to quicker power delivery and minimized drivetrain losses.
When every foot-pound counts, you need a shaft that won’t flinch. This design resists torsional stress and pitting under heavy load, making it ideal for drag strips, lifted trucks, rock crawlers, and turbocharged builds. It's engineered to meet or exceed OE performance standards for strength, fitment, and reliability.
Thanks to its easy drop-in fit with no modification required, you’ll spend less time wrenching and more time chasing performance. Whether you're dialing in a custom setup or replacing a worn unit in a built differential, this pinion shaft delivers the backbone your drivetrain demands.
Push harder. Drive stronger. Trust your build.
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
CROSS PIN-GM 10 BOLT 8.5" - 93
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
- 00698231527535
- Weight
- 0.65 lb
- Height
- 2 in
- Length
- 8 in
- Width
- 2 in
- EO
- Legal US
- Life cycle
- Available to Order
- AAM brand code
- EXL
- Warehouse brand code
- EXL
- AAIA brand code
- GGVJ
Attributes
- App/Model
- GM 8.625"
- California Proposition 65
- WARNING: Cancer - www.P65Warnings.ca.gov
- Differential Case Design Type
- GM 8.5
- Taxonomy
- Differential LD
- Taxonomy A
- LD Differential
- Taxonomy B
- Carrier Internal Kits & Components
- Taxonomy C
- Cross Pins/Cross Shafts
- Title
- Differential Pinion Shaft
- Type
- Open
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; ...
Excel XL-5640
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