Detroit Truetrac Vs Locker: Which Is The Best Differential For You

What is the difference between Detroit Truetrac and Locker? Well, The Truetrac is not a “locker,” but rather a helical gear restricted slip differential.

Truetrac transfers power from the spinning wheel to the wheel with the best traction. When one tire loses traction, the degree of rotation is regulated, bypassing the lost grip to the wheel with better traction.

The appropriate differential for your rear-end construction is a big decision that will stick with you for an extended period, and that’s where Trutrac and Locker come in. So, which one should you use between Detroit Truetrac vs Locker?

Detroit truetrac varies quite a lot from a locker, and thus today, our discussion will give you a clear idea about all the differences between them.

Detroit Truetrac Vs Locker

MechanismHelical-gear style differentialAutomatic Locking differential
PerformanceIncreases driving and handling qualities by increasing wheel traction.During straight-line driving, it is generally locked and transmits 100 percent of the available torque to both wheels evenly.
FunctionalityOpen differential traction systemPure Brute force traction system
UsageStreet, strip, and racingOff-road and Circuit use
DesignIt’s a friction-based differential with no replaceable parts on the interior.Internal and side gears, as well as pinion gears, are used in an open gear set.

Now, it’s time to compare the Detroit Truetrac with Locker. We will cover each and every aspect of both of these differentials. These differentials are excellent aftermarket choices, but they are not the same in many factors.


When talking about the mechanism, people often ask, is truetrac a locker? But, no, it is not. Both of them have a completely different working mechanism.

The Detroit Truetrac has a limited-slip worm differential with Helical gear. Under typical driving conditions, it functions as an open differential, allowing one tire to spin faster or slower as needed.

On the other hand, Locker includes an automated “ratcheting-style” differential that is noted for its dependability, rugged construction, and fully-locked performance on any terrain.


Whether you are using these differentials on the jeep or for drag racing cars, both of them provide excellent performance. If we consider the performance of Detroit locker vs truetrac jeep, we see they both work differently.

The Detroit Locker differential is generally locked during straight-line driving, sending 100 percent of available torque to both wheels evenly. Internal components are released during spins and maneuvers, allowing one wheel to spin faster or slower as needed.

Truetrac, on the other hand, increases tire traction and improves driving and handling qualities. Under typical driving circumstances, the Truetrac functions as a regular or open differential.


When one of the wheels loses traction, or the terrain changes, causing one tire to have more or less traction than the other, the gear separation forces transmit torque to the wheel with the most traction in Truetrac. The helical gears mesh with increasing force until the wheel rotation slows or stops entirely.

However, pure brute force traction for Locker allows you to drive on a better road surface while disengaging one or both wheels to avoid tearing up the tires. It functions as a spool.


The Locker keeps both wheels in drive mode, even if one is lifted off the ground, and it operates both forward and reverses. The gearbox is also an open set gear, allowing you to work on the insides.

Also Read: Flowmaster Super 44 Vs Super 10- Which Can Be Your Exhaust Part?

Truetrac, on the other hand, does not require any extra oil additives or maintenance. The Truetrac maintains day-one performance for the life of the unit, thanks to silky-smooth positive operation and no wearable components. As a result, it has no internal pieces that can be repaired.


The Detroit Locker is well-known among drag racers and off-road enthusiasts. Off-road, towing, street, and racing are all common uses for the Truetrac.

Detroit truetrac vs e locker

Even though our discussion focuses on the difference between Truetrac and Locker, when comparing them, we must make another discussion about the difference between Detroit truetrac vs e locker.

TrueTrac, both front, and rear, is more effective in snowy circumstances for street driving in 4WD. On the other hand, the E locker is geared more for genuine off-road capabilities.

You May Like This Video Too!

Frequently Asked Questions (FAQs)

Is Detroit Truetrac any good?

Truetrac from Detroit performs admirably in mud and snow while becoming overlooked in everyday driving. The device will not lock up completely in instances like rough paths when one wheel comes off the ground.

Are Detroit Lockers any good?

The Detroit Locker is well-known among drag racers and off-road enthusiasts. It appeals to men in the sports market due to its pure raw power traction. It’s simply a spool, although it does allow you to drive on a better road surface and disengage one or both wheels to avoid tearing up the tires. So, certainly, this is a good choice.

Who makes Truetrac differential?

Truetrac differential is made by the Eaton Detroit is a highly adaptable differential that can improve traction in a wide range of vehicles.

Is Truetrac good for drag racing?

Drag racing with the TrueTrac is not encouraged, especially with a stick automobile. The helical gear configuration in an 8.8 differential does not provide enough gear contact surface area to resist the stress loads of repeated clutch drops with slicks.


Therefore, now that you know how the EATON Detroit truetrac vs Detroit Locker automotive aftermarket performance differentials work, how they operate, and their ideal uses, you should figure out which one is right for you.

When talking about Detroit Truetrac vs Locker, the Eaton Detroit Locker or ELocker are solid alternatives for hardcore off-road or circuit use; the Eaton Truetrac may be the perfect differential for light off-road, street, strip, or racing use.

You Can Also Read:

D Conroy

Meet our senior writer and content manager of Automasterx. He has worked in several mechanical garages and mastered different vehicle diagnoses and parts repair. He never stops until finding out the ultimate solutions for any vehicle fault code. However, ensuring the only solid solutions for each vehicle malfunction is his core part of the duty, alongside analyzing fault codes and signals.

Similar Posts