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Detroit Locker 187SL17B Automatic Locking Differential

(1975-1986 Ford F-150 Base; 1965-1973 Ford Mustang Base; 1976-1986 Ford Bronco Base; 1976-1983 Ford F-100 Base + 3 more models)

Part of: Detroit Locker Automatic Locking Differential

Other options in this family: Detroit Locker 187C145A Detroit Locker 225SL58C Detroit Locker 162C56A Detroit Locker 225SL56A Detroit Locker 225SL29A

Manufacturer

Picture for manufacturer Detroit Locker

Part Number

187SL17B
13 reviews
Sale Price

$849.80

2 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Detroit Locker 187SL17B is an automatic locking differential designed to deliver maximum traction in demanding off-road and performance applications. This differential automatically locks and unlocks based on torque input, ensuring both drive wheels maintain equal power distribution when traction is needed most.

Key Features:

  • Automatic engagement and disengagement for seamless operation
  • 100% power transfer to both wheels when traction is required
  • Durable forged steel construction for extreme-duty applications
  • Direct replacement for factory open or limited-slip differentials
  • Provides superior traction in mud, snow, rocks, and challenging terrain
  • Proven design trusted by off-road enthusiasts and racers

The Detroit Locker operates transparently during normal driving conditions, automatically locking when torque is applied during acceleration or when wheel slip is detected. This ensures maximum pulling power and vehicle control in situations where open differentials would fail. Ideal for rock crawling, trail running, and any application requiring dependable traction.

Products specifications

Fits

1975-1986 Ford F-150 Base; 1965-1973 Ford Mustang Base; 1976-1986 Ford Bronco Base; 1976-1983 Ford F-100 Base; 1975-1987 Ford E-150 Econoline Club Wagon Base; 1968-1983 Ford E-100 Econoline Base; 1968-1974 Ford E-200 Econoline Base

Aftermarket Carrier Style

Detroit locker

Axle Shaft Spline Quantity

31

Carrier Material

Steel

Cover Bolts

10

Manufacturer of Axle

Ford

Notes

Except 2.72 gear ratio.

Quantity

Sold individually.

Met all my expectations - would use again.

Easy to use site, good prices.

They had what I needed, it was priced right and it shipped on time.

Good price and quick delivery.

When I noticed my shift collar was wearing out, I got on the computer and found Autoplicity having one reasonably priced and ordered one. It came in no time at all and is in the paint shop as I type. I ordered it on Christmas and had it before New Years. That's fast. And it's a new one, not used.

Eveything was good. And came on time

The shipping down to Albuquerque New Mexico was way faster then expected. The part fit like a glove and looks even better. The right part, at the right price. I WILL USE THESE GUYS IN THE FUTURE.

Very easy ordering using Amazon Pay!

easy, fast

Very pleasant order over the phone. Gentleman was smart, cheerful and helpful.

Autoplicity cares about there customers. I ordered a flash programmer and got to the last page and never got a confirmation of the order. I used the website chat and talked to somebody about it right away. So I ordered again and got a conformation. But both went though. Autoplicity called me next day a.m. to see if I made a mistake. Thanks for letting me know and correcting to one order. Saved me from shipping back a product I dind't need.

Good products with low prices. Easy website and pament options.

Exact product as promised with the best price on the internet. Product shipped fast and had a tracking number to keep me up to date on my order. I would order from again without hesitation and will tell friends.

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