9-Plus® 99012 - Traction Lock and Limited Slip Differentials Friction Modifier, 4 oz

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Universal Fit
Fitment Notes:
  • Not Vehicle Specific
  • The only application for this fluid in Ford rearends - not to be used in any Dana or GM rearend.
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Product Details

9-Plus Rear End Components

Universal Traction Lock and Limited Slip Differentials Friction Modifier, 4 oz. by 9-Plus®. 4 ounce bottle of 9-Plus posi traction additive, aka friction modifier used in Ford 8", 9", or 8.8" rearends with clutch disc type traction lock or limited slip differentials.

Notes: The only application for this fluid in Ford rearends - not to be used in any Dana or GM rearend.



  • High quality at an affordable price
  • Expertly made from premium materials
  • Built to match your exact requirements

9-Plus® is a leading supplier of performance automotive rear end parts for passenger cars, trucks, SUVs as well as racing cars. Since its inception, the company has striven to design and manufacture best-in-class products that meet original OEM specifications in fitment and surpass OEM specifications in quality and reliability. Years of hard work and constant development have resulted in the creation of a comprehensive line of superior automotive rear end parts ranging from housing centers, ends and tubes to gears cases, yokes, pinion supports and complete brake kits.

Part Number:

Warranty Information

All items in this catalog are warranted to be free from defects in materials and workmanship prior to installation. Any alteration or improper use will void this warranty. Because all parts that 9-Plus sells are intended for use in heavy-duty applications, it is not possible to warranty or guarantee the performance of any items. Further, 9-Plus disclaims any express or implied warranties. 9-Plus products may be subject to an infinite variety of conditions due to the manner in which they are used, serviced and/or installed. Purchasers and users of such products rely upon their own judgment as to the suitable use, selection, service and installation of such products.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is universal

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