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Slip Lock

Product code : ADATB-EA

Differential Additive

AMSOIL Slip Lock® Differential Additive (ADA) is formulated with advanced friction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with clutch-type limited-slip differentials.
AMSOIL Slip Lock® Differential Additive (ADA) is formulated with advanced friction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with clutch-type limited-slip differentials.
Warning - Click here for Proposition 65 information for this product

Slip Lock



AMSOIL Slip Lock Differential Additive is formulated for use with both synthetic and petroleum gear lubricants and safely replaces manufacturer-recommended friction modifiers. Its convenient squeeze-tube packaging provides quick and easy application to the gear housing. One four-ounce tube of Slip Lock treats differential capacities of two to four quarts. It is not for use in automatic transmissions or other applications requiring automatic transmission fluid.

NOTE: AMSOIL synthetic gear lubes do not require this additive. However, not all differentials respond the same and the addition of AMSOIL Slip Lock will eliminate chatter in mechanically sound differentials.

  • Contains advanced friction modifiers
  • Helps eliminate gear housing chatter
  • Recommended for cars, trucks and SUVs

Slip Lock

  • 5
    Works great
    By  TIM,  a  Verified Buyer  from  Alabama   on  November 24, 2021

    Describe the issue

    Easy to use, no measuring, tube works great
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Skip lock
    By  MATT,  a  Verified Buyer  from  PA  on  November 10, 2021

    Describe the issue

    Use this in replacement for Ford motorcraft in my '19 GT350 and Severe Gear. No chatter. Works excellent.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Cured my cranky rear end
    By  Bill,  a  Verified Buyer  from  Pittsburgh PA  on  October 24, 2021

    Describe the issue

    Works better than the OEM product in keeping by locker rear end smooth and quiet.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Good additive
    By  Michael,  a  Verified Buyer  from  AL  on  October 18, 2021

    Describe the issue

    I have to use this with the severe gear synthetic gear lube SAE 75w-90. In my 2016 Power Wagon. I have always used this product in my truck I now have over 120k miles and have never had any issues with my forward or aft differential. Hopefully I'll get another 120k out of her.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great product
    By  Bob,  a  Verified Buyer  from  CA  on  October 08, 2021

    Describe the issue

    Slip lock along with severe gear oil got rid of chatter in rear end.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Rear end additive made the rear end run smoother and quiet
    By  Stephen,  a  Verified Buyer  from  CT  on  September 16, 2021

    Describe the issue

    Excellent product rear rear end running smoother and quiet
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    KEEPS AN OLD TRUCK RUNNING
    By  STEVE,  a  Verified Buyer  from  FLORIDA  on  September 02, 2021

    Describe the issue

    YEARS AND YEAR OF USE KEEPS TRUCK SMOOTH RUNNING AND QUIET
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    All Amsoil products were great
    By  Jason,  a  Verified Buyer  from  California  on  August 29, 2021

    Describe the issue

    In all my cars
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    No more chatter
    By  DON M.,  a  Verified Buyer  from  WA  on  August 27, 2021

    Describe the issue

    This worked perfectly to eliminate the chatter I was getting from my limited slip differential.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Best additive out there.
    By  GORD,  a  Verified Buyer  from  Nfld  on  August 25, 2021

    Describe the issue

    Bought a '88 iroc and wanted to start the process of changing the fluids to the best I could get and Amsoil is the best in my opinion.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?