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Detroit Locker 225SL29A Automatic Locking Differential

(Ford F-350 Super Duty 1974-79, F-250 1969-79; Dodge Challenger 1970-71, W250 1981-93, Coronet 1966-70, D250 1983-93, B250 1983-94, W350 1981-93 + 11 more models)

Part of: Detroit Locker Automatic Locking Differential

Other options in this family: Detroit Locker 187C145A Detroit Locker 187SL17B Detroit Locker 225SL58C Detroit Locker 162C56A Detroit Locker 225SL56A

Manufacturer

Picture for manufacturer Detroit Locker

Part Number

225SL29A
4 reviews
Sale Price

$916.58

1 left at this price

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Usually delivered within 2 days

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Product Details

The Detroit Locker 225SL29A is an automatic locking differential designed to deliver maximum traction in demanding off-road and performance applications. This heavy-duty differential locker automatically engages and disengages based on torque input, providing 100% power to both wheels when traction is needed most.

Key Features:

  • Automatic operation requires no driver intervention or external controls
  • Provides 100% power transfer to both drive wheels for maximum traction
  • Constructed from high-strength forged steel for extreme durability
  • Locks and unlocks automatically through mechanical cam and coupler engagement
  • Designed for rock crawling, mud terrain, and severe duty applications
  • Direct replacement for standard open carrier differentials
  • Proven design trusted by off-road enthusiasts and professional racers

The Detroit Locker operates seamlessly during forward acceleration, providing positive traction by locking both axle shafts together. During cornering or deceleration, the locker automatically unlocks to allow differential wheel speeds, then re-engages when power is applied. This rugged unit is engineered to withstand the extreme loads encountered in competitive rock crawling, trail riding, and heavy-duty work applications.

Products specifications

Fits

Ford F-350 Super Duty 1974-79, F-250 1969-79; Dodge Challenger 1970-71, W250 1981-93, Coronet 1966-70, D250 1983-93, B250 1983-94, W350 1981-93, B3500 1995-98, B300 Van 1971-80, D450 1981; Chevrolet K20 1965-74, C20 1965-74 + 6 more models

Aftermarket Carrier Style

Detroit locker

Axle Shaft Spline Quantity

35

Carrier Material

Steel

Cover Bolts

10

Manufacturer of Axle

Dana

Notes

Recommended for 4.56 ratio ring gear and numerically higher.

Quantity

Sold individually.

This was my first purchase from Autoplicity, I bought a HyperTech tuner for my truck, they had absolutely the lowest price of anywhere I looked by far. Only thing I could fault them on is that it took 3 days for the product to ship, a little bit long I feel for something that was in stock, but Ill overlook it since it was such a great price.

good site,ordered monday recievied thursday

Autoplicity was quick, and fast! the shipping was standard but arrived in five days! I would definetly recommend them!

I ordered a water pump from them and that Amazon was advertising as a Chrome pump. When I discovered it was not chrome, I asked to cancel the order which was prior to shipping notification. I was told by customer service it had already been sent and I would have to wait until the item was sent for a return to be processed. The return was sent back and all money was credited to my account as promised.

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