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Detroit Locker R187-03A Automatic Locking Differential for Ford 9 Inch 31 Spline Circle Track

Manufacturer

Picture for manufacturer Detroit Locker

Part Number

R187-03A
10 reviews
Sale Price

$925.18

2 left at this price

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Usually delivered within 2 days

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Product Details

The Detroit Locker R187-03A is a complete automatic locking differential designed specifically for Ford 9-inch applications with 31-spline axles in circle track racing environments. This 100% automatic, wheel-speed sensitive locking differential delivers maximum traction by transferring torque equally to both drive wheels, ensuring both wheels remain in constant drive mode during acceleration.

Key Features:

  • Designed for Ford 9-inch differentials with 31-spline axles
  • Circle track racing specific application (excludes 2.72 gear ratio)
  • 100% automatic operation with no driver intervention required
  • Delivers maximum traction by providing equal torque to both wheels
  • Automatically allows wheel speed differentiation during cornering
  • Complete differential carrier assembly for drop-out third member installation
  • Engineered for durability in high-performance racing conditions

The Detroit Locker has been the industry standard in automatic locking differentials for decades, trusted by professional circle track racers for its proven reliability and superior traction characteristics. This unit includes the complete carrier assembly with case for simplified installation into Ford 9-inch housings.

Products specifications

Aftermarket Carrier Style

Detroit locker

Axle Shaft Spline Quantity

31

Carrier Material

Steel

Cover Bolts

10

Manufacturer of Axle

Ford

Notes

Fits Circle track racing version.

Quantity

Sold individually.

Was easy to find the correct parts.

I had not shopped at Autoplicity before this purchase. Everything worked out great - product was delivered very quickly and exactly what I ordered. Thank you Autoplicity.

I was very impressed at the timely fashion our order was shipped. I will be shopping with Autoplicity in the future.

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Great Price! Fast Shipping!

Great service, awesome prices, incredibly fast shipping. A++ I would absolutely suggest you to my friends and family

Quick ordering process.

Quick and efficient, Thank You!

The ordering process went really smoothly. Got my ordering info e-mailed smartly and was able to track the order easily. Looking forward to using my item as soon as it gets here!

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