My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Eaton Torque Control Products 912A587 Detroit Truetrac Helical Gear Limited Slip Differential

(Ford F-150 1975-87, Mustang 1964-73, 1979-80, Ranger 1983-87, Bronco 1966-87, Thunderbird 1957-80, Maverick 1970-77, Galaxie 500 1962-74 + 87 more models)

Manufacturer

Part Number

912A587
Sale Price

$649.81

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Detroit Truetrac is a helical gear-type limited slip differential that delivers reliable traction without the maintenance headaches of traditional clutch-type units. Engineered by Eaton, this differential was the first helical gear differential introduced to the automotive aftermarket and continues to set the standard for performance and durability.

Key Features:

  • Helical gear design eliminates clutch packs and other wearable friction components
  • Maintenance-free operation for long-term reliability
  • Smooth and quiet performance with no chatter
  • Automatically transfers torque to the wheel with better traction
  • Works seamlessly in all driving conditions, from daily commuting to off-road use
  • Drop-in replacement for factory open differentials in many applications

Unlike clutch-type limited slip differentials that wear out over time and require rebuilds, the Detroit Truetrac uses interlocking helical gears that provide consistent traction year after year. When one wheel loses grip, the differential automatically redirects power to the wheel with traction, improving acceleration, handling, and control. Ideal for trucks, SUVs, off-road vehicles, and performance applications where dependable traction is essential.

Products specifications

Fits

Ford F-150 1975-87, Mustang 1964-73, 1979-80, Ranger 1983-87, Bronco 1966-87, Thunderbird 1957-80, Maverick 1970-77, Galaxie 500 1962-74, Fiesta 1978-80, F-100 1975-76, 1979, Fairlane 1957-70, Torino 1968-76, Mustang II 1974-78 + 82 more models

I ordered an AEM intake for my F-150 on Christmas day and received it on the 29th. I would absolutely recommend this site to anyone looking for car parts - they had the lowest price by far and shipped fast. Great job!

Best prices on the net. Great selection.

This is the first time I ordered from Autoplicity. Very good experience overall. The prices are the best I can find anywhere online. It was shipped very quickly, and I received my item just in time before my trip. Thanks!

Very speedy and in excellent shape. Easy to install and only took minutes. Autoplicity in my book is a great place to shop. <br><br>-Jason Chance<br> Cape Fair, MO

Absolute lowest retail price and lightning fast shipping. What more can you ask?

Great selection of parts and great responses to orders through e mail

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy