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Your cart is empty.Hapco Limited Slip Additive effectively reduces wear, noise and chatter in differentials. Our formula helps provide extreme pressure-wear resistance in any fluid system. Will not harm seals and does not contain petroleum distillates. For Best Results: Add one 4 oz. bottle of Limited Slip Additive when gear oil is changed or unusual slip is detected. Drive vehicle as normal to allow circulation of fluids. Also safe for: electric motors, hydraulic pumps, moving shafts, power mowers and pillow blocks.
Austin Bloom
Reviewed in the United States on February 20, 2025
Easy to use bottles. Used 2 bottles (8 oz) for the rear differential in my 2005 F150.
Romy
Reviewed in the United States on September 2, 2024
WORKS AS DESCRIBED
Federico Crispino
Reviewed in the United States on November 19, 2024
excellent
Brandon Shortt
Reviewed in the United States on March 24, 2023
Great product and works as should. A little pricey compared to others, but worth it
savannah
Reviewed in the United States on October 20, 2022
it was a gift. it did improve the shifting.
Marc
Reviewed in the United States on July 10, 2021
Good additive, used it just in case
Dan P.
Reviewed in the United States on April 23, 2021
Best part it doesn't stink like the Motorcraft stuff, hopefully just as good. Using it in front axles for mfd tractors.
Kenneth Willis
Reviewed in the United States on May 31, 2020
Great job keep it up
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