Detroit Locker | GM 12 Bolt | C-Clip | 3.73 & Up

Product Code: 63-187C150A

PRICE: $1,265.00

The legendary Detroit Locker began the revolution in performance differentials and still leads the industry today as an Eaton brand.

The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is engineered to keep both wheels in drive mode - even if one wheel is lifted off the ground. It is engineered to keep both wheels in a constant drive mode, and has the ability to automatically allow wheel speed differentiation when required.

No other performance differential has the reputation for delivering traction in mud, snow, rocks and on the track. The choice of professional racers and off-road enthusiasts around the world, the durability of the Detroit Locker is unmatched!

Key Features

  • 100 % Automatic locking
  • Unmatched Strength
  • Maintenance free
  • Wheel speed sensitive
  • Operates in both forward and reverse
  • Available for C-Clip style axles
  • Suitable for Competition and off road use

Vehicle Applications:

  • Chevrolet Half Ton Truck, 1964 - 1982
  • Suits all GM vehicles fitted with 12 Bolt housing, 8.875" Crown Wheel, 30 spline axles and 3.73 & Up ratio.


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  • The Eaton Detroit Locker is not recommended for street use.
  • Differential rebuild kits and/or bearings may be required when fitting this product. These parts will need to be sourced separately.
  • Specific bearings are required when fitting this Locker, 1999 and earlier vehicles use LM102949 & LM102911. Vehicles from 2000 - current use LM603049 & LM603012.
  • The Detroit Locker is manufactured by Eaton
  • Image is for illustration purposes only



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