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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
    Did it’s job
    By  KYLE,  a  Verified Buyer  on  May 02, 2021

    Describe the issue

    Put it in one of my work trucks when I did the differential change worked out great
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Owrfect
    By  CHRISTOPHER,  a  Verified Buyer  on  April 25, 2021

    Describe the issue

    Worked great
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Ford f-150 2008 differentiel shudder
    By  DANIEL,  a  Verified Buyer  from  Terrebonne , Québec , Canada  on  April 24, 2021

    Describe the issue

    No more shudder , i recommend , fast , easy and low cost.
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    By  KENNY,  a  Verified Buyer  from  Phoenix Az  on  March 28, 2021

    Describe the issue

    PossiTrac???? Better Be Using It!!
    Bottom Line
    Yes, I would recommend this to a friend.
  • 4
    By  EMIGDIO,  a  Verified Buyer  on  March 23, 2021

    Describe the issue

    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Ford replacement
    By  VICTOR,  a  Verified Buyer  from  Temple, GA  on  February 12, 2021

    Describe the issue

    Great stuff for the clutch type diffs. The best part is how much it doesn’t smell compared to Ford additive. That stuff was brutal through a sealed bottle inside a zip lock bag. No issue so far with Yukon Dura Grips.
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    New gear oil additive in differential
    By  EDWARD,  a  Verified Buyer  on  December 31, 2020

    Describe the issue

    Very much needed additive for gear swap and with 75w-140 gear oil. Amsoil is rated the best and so I chose the best!
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    By  VALERIE,  a  Verified Buyer  from  Oklahoma   on  December 22, 2020

    Describe the issue

    Fantastic
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    By  CYRIL,  a  Verified Buyer  from  Florida  on  December 16, 2020

    Describe the issue

    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    120,000 mile maintenance
    By  PARKER,  a  Verified Buyer  from  RI  on  December 12, 2020

    Describe the issue

    120,000 on my 2017 F350 CC 6.2L. Replaced all fluids. Used Amsoil for everything. No chatter in locking rear with this friction modifier.
    Bottom Line
    Yes, I would recommend this to a friend.