Eaton Detroit Locker | Ford 9″ Rear | 31 Spline Axles | 3.25 & 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: 187SL17B

Traction Type: Eaton Detroit Locker

Carrier Break: 3.25 & Up

Differential: Ford 9 Inch

Vehicle Fitment

• 1966 – 1986        Ford       Bronco
• 1969 – 1983        Ford       E-100 Econoline
• 1975 – 1986        Ford       E-150 Econoline
• 1975 – 1983        Ford       F-100
• 1975 – 1986        Ford       F-150
• 1972 – 1976        Ford       Gran Torino
• 1975 – 1980        Ford       Granada
• 1970 – 1977        Ford       Maverick
• 1955 – 1979        Ford       Thunderbird
• 1968 – 1976        Ford       Torino
• 1965 – 1973        Ford       Mustang
• 1965 – 1970        Ford       Falcon
• 1969 – 1974        Ford       E-200 Econoline
• 1958 – 1979        Lincoln  Continental
• 1968 – 1971        Lincoln  Mark III
• 1975 – 1978        Mercury               Grand Marquis
• 1967 – 1978        Mercury               Marquis
• 1968 – 1976        Mercury               Montego
• 1975 – 1980        Mercury               Monarch
• 1963 – 1970        Mercury               Marauder

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