Eaton Detroit Locker | Chevy 1988-2019 GM 8.5/8.6″ Front/Rear | 30 Spline Axles | 2.73 & Up

The Eaton Detroit Locker is a locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bulletproof design is engineered to keep both wheels in drive mode – even if one wheel is lifted off the ground.

Specs

Part Number: 187C148A

Traction Type: Eaton Detroit Locker

Carrier Break: 2.73 & Up

Differential: GM 8.5 Inch | GM 8.6 Inch

Vehicle Fitment

• 1973 – 1975        Buick     Apollo
• 1973 – 1987        Buick     Regal
• 1991 – 1996        Buick     Roadmaster
• 1991 – 1996        Buick     Commercial Chassis
• 1970 – 1979        Buick     Skylark
• 1975 – 1978        Buick     Riviera
• 2004 – 2007        Buick     Rainier
• 1999 – 2013        Cadillac Escalade
• 2003 – 2013        Cadillac Escalade ESV
• 2002 – 2009        Cadillac Escalade EXT
• 1977 – 1986        Chevrolet             K5 Blazer
• 1988 – 1998        Chevrolet             C1500
• 1992 – 1998        Chevrolet             C1500 Suburban
• 1991 – 1996        Chevrolet             Caprice
• 1996 – 2013        Chevrolet             Express 1500
• 1988 – 1995        Chevrolet             G10
• 1988 – 1995        Chevrolet             G20
• 1994 – 1996        Chevrolet             Impala
• 1988 – 1998        Chevrolet             K1500
• 1993 – 1998        Chevrolet             K1500 Suburban
• 1988 – 1991        Chevrolet             K2500
• 1989 – 1991        Chevrolet             R1500 Suburban
• 1988     Chevrolet             R10 Suburban
• 1995 – 2000        Chevrolet             Blazer
• 1995 – 2013        Chevrolet             Tahoe
• 1989 – 1991        Chevrolet             V2500 Suburban
• 1989 – 1991        Chevrolet             V1500 Suburban
• 1994     Chevrolet             S10 Blazer
• 1988     Chevrolet             V20 Suburban
• 1999 – 2019        Chevrolet             Silverado 1500
• 2002 – 2008        Chevrolet             Trailblazer
• 2000 – 2013        Chevrolet             Suburban 1500
• 2004 – 2012        Chevrolet             Colorado
• 2000 – 2013        Chevrolet             Suburban 2500
• 2002 – 2006        Chevrolet             Avalanche 1500
• 2002 – 2006        Chevrolet             Trailblazer EXT
• 2003 – 2006        Chevrolet             SSR
• 1988 – 1998        GMC      C1500
• 1992 – 1998        GMC      C1500 Suburban
• 1988 – 1995        GMC      G1500
• 1996 – 2013        GMC      Savana 1500
• 1988 – 1995        GMC      G2500
• 1988 – 1998        GMC      K1500
• 1992 – 1998        GMC      K1500 Suburban
• 1988 – 1991        GMC      K2500
• 1988 – 1991        GMC      R1500 Suburban
• 1994 – 2004        GMC      Sonoma
• 1992 – 1993        GMC      Typhoon
• 1988 – 1991        GMC      V2500 Suburban
• 1992 – 2013        GMC      Yukon
• 1994 – 2005        GMC      Jimmy
• 1999 – 2019        GMC      Sierra 1500
• 2000 – 2013        GMC      Yukon XL 1500
• 2002 – 2008        GMC      Envoy
• 2004 – 2012        GMC      Canyon
• 2002 – 2006        GMC      Envoy XL
• 2004 – 2005        GMC      Envoy XUV
• 2003 – 2008        Isuzu     Ascender
• 2005 – 2009        Saab      9-7x
• 2006 – 2010        Hummer              H3
• 2009 – 2010        Hummer              H3T

Download EATON Application Guide PDF

Operation

Normally locked, during straight-line driving, the Detroit Locker sends 100% of available torque to both wheels equally. During turns and maneuvers, the internal components unlock to allow one wheel to spin faster or slower as necessary (free wheel). When the vehicle returns to straight-line driving, the components re-engage and provide power to both wheels.

Performance

The Detroit Locker is highly engineered, tested and validated for a variety of uses including racing, towing, off-road, rock crawling and street/strip. No other performance differential can match its reputation for delivering traction in mud, snow, rocks and on the track.

Lubrication

A quality petroleum GL5 rated (mineral) based oil is recommended. Synthetic oils may also be used if desired per axle manufacturer’s recommendations

Features

Normally locked, with automatic, speed sensitive unlocking as needed

Provides maximum amount of traction to both wheel ends