Eaton Detroit Locker | Chevy / GM 8.5″ 1964-1989 Front/Rear | 28 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: 187C149A

Traction Type: Eaton Detroit Locker

Carrier Break: 2.73 & Up

Differential: GM 8.5 Inch

Vehicle Fitment

• Buick     Apollo   1973 – 1975
• Buick     Century 1973 – 1977
• Buick     LeSabre 1971 – 1985
• Buick     Estate Wagon    1971 – 1981
• Buick     Regal     1973 – 1987
• Buick     Skylark  1970 – 1979
• Buick     Riviera   1977 – 1978
• Cadillac Seville    1976 – 1979
• Chevrolet             K5 Blazer              1975 – 1986
• Chevrolet             C10        1977 – 1986
• Chevrolet             C10 Suburban    1977 – 1986
• Chevrolet             Camaro 1970 – 1981
• Chevrolet             El Camino            1973 – 1977
• Chevrolet             Impala  1971 – 1985
• Chevrolet             K10        1977 – 1986
• Chevrolet             K10 Suburban    1977 – 1986
• Chevrolet             K20        1977 – 1986
• Chevrolet             K20 Suburban    1977 – 1986
• Chevrolet             Malibu  1973 – 1977
• Chevrolet             Monte Carlo       1973 – 1977
• Chevrolet             Nova     1971 – 1979
• Chevrolet             Bel Air   1970 – 1975
• Chevrolet             Biscayne               1964 – 1972
• Chevrolet             Brookwood        1970 – 1972
• GMC      C1500   1984 – 1986
• GMC      C1500 Suburban              1979 – 1986
• GMC      G1500  1979 – 1987
• GMC      K15        1977 – 1978
• GMC      K15 Suburban    1977 – 1978
• GMC      K1500 Suburban              1979 – 1986
• GMC      K25        1977 – 1978
• GMC      K2500   1979 – 1986
• GMC      K25 Suburban    1977 – 1978
• GMC      K2500 Suburban              1979 – 1986
• GMC      Sprint    1973 – 1977
• Oldsmobile         98           1970 – 1984
• Oldsmobile         Cutlass  1970 – 1987
• Oldsmobile         Cutlass Salon      1975 – 1987
• Oldsmobile         Cutlass Calais     1978 – 1984
• Oldsmobile         Cutlass Supreme               1970 – 1987
• Oldsmobile         Cutlass Cruiser   1980 – 1983
• Oldsmobile         Delta 88               1971 – 1985
• Oldsmobile         Omega  1973 – 1979
• Oldsmobile         Vista Cruiser       1970 – 1975
• Pontiac Bonneville           1971 – 1981
• Pontiac Firebird 1971 – 1981
• Pontiac Catalina 1971 – 1981
• Pontiac Grand Am            1973 – 1980
• Pontiac Grand LeMans   1975 – 1977
• Pontiac Grand Prix           1971 – 1977
• Pontiac Phoenix 1977 – 1979
• Pontiac LeMans 1972 – 1977
• Pontiac Parisienne            1976 – 1986
• Pontiac Ventura 1971 – 1977
• Pontiac Grandville            1971 – 1975
• Pontiac GTO       1972 – 1973

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