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  Store > Detroit Lockers >

GM 12 Bolt Passenger / GM 12P Detroit Locker | 35 Spline (3.08 - 3.90)
Detroit Locker
Photo is for illustration purposes only and may
not be an accurate depiction of this product.
  
List Price: $956.46
Your Price: $831.70



Status: Usually Ships in 24 to 48 Hours
Product Code: EAT-187S196A


Add Cryogenic Treatment Service [+$270.00]
- Increases strength and durability of lockers by 20-50%.
- Improves case and core hardness transition and microstructure.
- Relieves internal stresses and reduces microfractures.

Services are performed by Crown Race Gears.
Service times vary by season (2 to 6 weeks).

Qty:  
Description Compatibility Part Numbers
 

Eaton Model: Application: Axle Shafts: Gear Ratios:
187S196A GM 12P 35 Spline 3.08 - 3.90

This Detroit Locker fits GM 12 Bolt Passenger (12P) 8.875" axles with 35 spline axle shafts.

This differential fits 3.08 to 3.90 gears only. Do not use thick gears.
For more information, please see Thick Gears and Carrier Breaks.


How Does The Detroit Locker Compare To Other Lockers?

[ Jump To Detroit Locker Section Of Video | Crawlpedia Differential Locker Comparison ]



(To skip ahead to the Detroit Locker section of the video, go to minute 21:35 or click here.)


Detroit Lockers are well known for being one of the most durable and dependable differential lockers available thanks to their heavy duty construction and simple, yet very effective design. They provide 100% traction to both wheels while still allowing for wheel speed differentiation on the street or other high-grip terrain. The Detroit Locker has been around since 1941 and has stood the test of time to reach legendary status with off-road enthusiasts, hot rodders, and drag racers.



Detroit S Model Lockers
Detroit SL Locker
Exploded View
Detroit Locker


Detroit Lockers are also known as the Detroit No Spin and Detroit Soft Lockers and come in various styles and configurations that either replace the entire differential carrier or just the internal spider gears. Axles that use C-clips must use "C" model Detroit Lockers and while different applications may look different, all Detroit Lockers function the exact same way.


Eaton images are © Copyright Eaton Corporation, used with permission.
Additional images and product descriptions are © Copyright Filthy Motorsports, LLC.
Features
  • Legendary traction and durability
  • 100% automatic locking traction
  • Wheel speed sensitive mechanism
  • Proven design with over 60 years of use
  • Compatible with front and rear axles
  • (Front axles require unlocking hubs)


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