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Detroit Locker 914A538 Truetrac Limited Slip Differential GM 9.5" 14-Bolt 33-Spline

Manufacturer

Detroit Locker

<p>Detroit Locker, now part of the Eaton family, represents one of the most storied names in performance drivetrain components. The legendary Eaton Detroit Locker began the revolution in performance differentials and continues to set the standard for automatic locking differential technology. Originally developed for off-highway and heavy-duty applications, the Detroit Locker became a factory option in muscle cars during the 1960s and has since earned a reputation among professional racers, rock crawlers, and off-road enthusiasts who demand maximum traction in the most challenging conditions.</p><h3>How Detroit Locker Technology Works</h3><p>The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Unlike limited-slip differentials or open differentials, the Detroit Locker operates in a fully locked state during straight-line driving, capturing 100% of available torque and distributing it equally to both wheels. In turns and maneuvers, the internal components unlock to allow one wheel to spin faster or slower as necessary (free wheel). When the vehicle returns to a straight-line driving path, the components re-engage and provide power to both wheel ends. This wheel-speed-sensitive design ensures that power is always delivered where it's needed most, whether you're navigating mud, snow, rocks, or the drag strip.</p><h3>Built for Extreme Performance</h3><p>The Detroit Locker's reputation for durability stems from its robust engineering and high-quality manufacturing. Detroit Lockers have a very high "strength density", thanks to continual process innovation, advanced metallurgy, and ultramodern machining methods. The design is engineered to handle more torque than the axle shafts themselves can transmit, making it an ideal choice for high-horsepower builds, competitive racing, and severe-duty towing applications. From drag racing to rock crawling, the Detroit Locker delivers consistent, reliable performance under conditions that would overwhelm conventional differentials.</p><h3>Premium <a href="/178-detroit-locker-differential-carrier-13098">Differential Carriers</a> and Components</h3><p>Detroit Locker's <a href="/178-detroit-locker-differential-carrier-13098">differential carrier</a> assemblies are precision-engineered to integrate seamlessly with a wide range of axle configurations. These carrier units house the sophisticated locking mechanism that defines Detroit Locker performance, providing the foundation for extreme traction applications. The brand also offers components for <a href="/178-detroit-locker-differential-2304">differentials</a> across numerous vehicle platforms and <a href="/178-detroit-locker-automatic-transmission-valve-body-12200">automatic transmission valve bodies</a> for select applications, ensuring comprehensive drivetrain solutions for performance enthusiasts.</p><h3>Applications and Uses</h3><p>Detroit Locker differentials are engineered for a diverse range of demanding applications. Below is a list of common uses: Street/Strip, Drag racing, Circle track / NASCAR, Rock crawling, Off-road, Utility Vehicles, Light, medium and heavy trucks. While many enthusiasts use Detroit Lockers for everyday street driving, the aggressive engagement characteristics make them particularly well-suited for racing and off-road environments where maximum traction is paramount. The brand's extensive application coverage spans Ford, Chevrolet, Dodge, Jeep, and many other popular platforms, with options for both front and rear axle installations.</p>

Part Number

914A538
07/17/2036 8:25 PM
Sale Price

$792.30

In Stock (5)

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Detroit Truetrac 914A538 is a helical gear-driven limited slip differential designed for GM 9.5-inch 14-bolt rear axles with 33-spline axle shafts. This maintenance-free differential uses a patented parallel-axis planetary helix gear design to automatically transfer torque from the slipping wheel to the wheel with better traction, providing smooth and quiet operation under all driving conditions.

Key Features:

  • Helical gear design eliminates clutches and wearable parts for maintenance-free operation
  • Automatic torque transfer provides limited slip performance without driver intervention
  • Quiet operation with no chattering or noise during turns
  • Works with all gear ratios for GM 9.5-inch 14-bolt applications
  • Compatible with both C-clip and non-C-clip axle configurations
  • Steel carrier construction for maximum durability
  • Requires GL-5 80W90 petroleum-based gear oil (no synthetic oil or friction modifiers)

The Truetrac performs like a limited slip differential under normal driving conditions, automatically splitting torque between both drive wheels when traction conditions vary. Its sealed unit design requires no adjustments or special additives, making it an ideal choice for trucks and SUVs that need reliable traction in mud, snow, and off-road conditions without the aggressive engagement characteristics of a full locker.

Products specifications

Aftermarket Carrier Style

Detroit Truetrac

Axle Shaft Spline Quantity

33

Carrier Material

Steel

Carrier Series

3

Cover Bolts

14

Manufacturer of Axle

GM

Notes

Semi-floating axle.

Quantity

Sold individually.

good so far

The product was as expected and on time.

easy and good price,shipping seemed high

Great service!

good

Quick and easy ordering process

Thank you

They had a better price than anyone else on the internet for the part I needed. And the shipping was fairly quick.

Very satisfied and very competitive price.

Great product, fast shipping!!

Unbeleively fast shipping. I ordered on a Tuesday night, and it was delivered to my door by Thursday. Plus, the item was the cheapest with shipping on the web! I will most certainly be doing business with them again!

Great price on plugs

little confusing

Great selection and easy checkout! The only thing is I didnt get an email confirmation as soon as I order which made me wonder is the transaction went through. I did get an email once the items were shipped though.

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