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Your cart is empty.Reduces friction and noise in the rear axle. Required for passenger car applications with limited-slip axles.
Customer
Reviewed in the United States on July 23, 2024
This works great. I always use this when replacing my rear diff fluid. If your vehicle has a limited slip diff in the rear, and its a Chevy, I recommend this additive when called for. I will buy this again next diff fluid change.
drogers14613
Reviewed in the United States on December 1, 2024
It's genuine GM; perfect for use intended.
luka
Reviewed in the United States on July 25, 2023
My rear diff was groaning and popping when turning after running for a while. Drained the old oil, refilled it with this additive + 1.5 quarts of Amsoil severe gear. No more noise from the rear diff.
Larry Jo
Reviewed in the United States on October 17, 2023
Perfect for my project.
Mathias H.
Reviewed in the United States on June 8, 2022
If your vehicle requires this, use it. High quality and a must have to ensure your differential has the required lubricant to provide protection you need.
Pmotion
Reviewed in the United States on September 7, 2021
I used this product in my Auburn Gear equipped GM diff. So far it is the only additive that has stopped the chattering at low speeds. I've tried all the Auburn Gear recommendations with no success and finally I can pull into a parking lot without someone asking me what's wrong with my car.
Tom Foollery
Reviewed in the United States on January 3, 2017
I honestly can say how much this stuff works but was told by many people to put it into my posi rear after I repaired it. If by any chance you get a clunking noise from the posi rear when taking turns, install this stuff!!!
Eric Thuillier
Reviewed in the United States on January 24, 2017
Perfect for my 1977 camaro with limited slip rear differential. With an old fluid (5 years , 25000 kilometers) i began to have 'cracking' little noises from my differential in roundabouts or straight turns. I emptied half of my differential (I was lazy and did it with a siringe), put 1 bottle of this fluid + new oil => soft turns again.Next time I will change my differential oil, I'll put 2 of these for a complete oil change in my differential. It helps 'clutches' to rotate freely one against the other. As I have no need for a locking differential on my car, I prefer the limited slip to be as smooth as possible.
J.s. weir
Reviewed in Canada on February 4, 2016
yep
Customer
Reviewed in Canada on December 15, 2016
What you need for GM Posi-Trac Differentials (limited slip). 1-bottle good for 1-differential. I pump some gear oil into the diff from its 1-litre container, then top up the gear oil container with this additive and pump the remainder into the diff. Change mine every 100,000 Km's.
Josh
Reviewed in Canada on November 22, 2014
Can't beat the GM additive for older (GM) vehicles!
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