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Ford Performance Friction Modifier

Item 50377
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      Video Review & Installation

      Hey guys, today we're gonna be taking a look at the Ford Performance Friction Modifier for all 1979 to 2014 Mustangs. If you didn't know already, friction modifier is an additive. It's added to lubricants to help reduce friction and therefore wear and tear.This friction modifier is made to be paired with gear oil, the kind that you fill your rear differential with. Friction modifier is recommended to be added to the rear gear oil for limited-slip diffs that have clutch pads. Of course, it will help with wear and tear and smooth operation. This friction modifier is made by Ford Performance but is compatible with other brands and gear oil.It costs about 11 bucks and this is a 3.8 fluid ounce bottle.Friction modifier is always going to be a good idea to add to your rear gear oil. Not only can it be a preventative and help keep away wear and tear, but it can also help if you're already having issues. It can reduce gear whine and chatter, so some aftermarket gear rears can be noisy and whine a lot, the friction modifier will help with that and quiet the gears down. Any time you're filling up gear fluid, whether you're just flushing it, you're installing a new rear diff, you're doing a rebuild, or you're swapping your gears, you'll always wanna grab some friction modifier to throw in the diff with the gear oil.If you're adding friction modifier though, just keep in mind that you should add it to fresh gear oil.You shouldn't really top used gear oil with modifier. You should always flush completely and refill with gear oil and the friction modifier. The friction modifier needs to be a ratio of the gear oil, not a replacement for it. Friction modifiers are known to be a must-have for anyone with an LSD that uses clutch pads.If you're interested in the Ford Performance Friction Modifier, you can always check it out more online right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Perfect for Gear Swaps
      • Reduces Gear Whine and Chatter
      • 3.8 fl oz Bottle
      • For All 1979 to 2014 Mustangs


      Perfect For Gear Swaps. Ford Racing's Friction Modifier is a specially formulated additive to provide smooth operation of clutch-type limited-slip differentials, perfect for gear swaps.

      Legendary Ford Racing Quality. When you're adding performance parts to your Pony, you can't go wrong by installing parts from the folks that know it best. Ford Racing's legendary quality ensures years of hassle-free use.

      Ford Racing Friction Modifier is recommended for use in 1979 to 2014 Mustangs and is compatible with other brands of gear oil. One bottle is required for rear ends equipped with Ford traction-lock units.

      Ford Performance M-19546-A12

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      What's in the Box

      • (1) 3.8 fluid oz bottle

      Tech Specs


      Customer Reviews (100)

        Questions & Answers

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