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Ford Racing Friction Modifier (79-14 All)

12 Reviews
Our Price

$9.99

  • Item #50377
  • MPN# M-19546-A12

  • Market Price $11.99
  • You Save 17% ($2.00)
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Features
  • Perfect for gear swaps
  • Reduces gear whine and chatter
  • 3.8 fluid oz bottle
  • For all 1979 to 2014 Mustangs
Description


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.

Application. 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.

Mustang Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

What's in the Box
  • (1) 3.8 fluid oz bottle
Fitment
  • Boss 302 - 12, 13
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • Bullitt - 01, 08, 09
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14

Most Helpful Reviews View All

Overall Rating 4.7/5 Write a Review
5/5
Did the Job!

Rear end goes smooth with the fricition modifier in it. You're goong to need a funnel if you have an after market diff cover. Amd I recommend a mask and gloves because it stick stinks very bad. Great product

Read More
Helpful (1) (0)

5/5
A must to do!!!

I installed ford 4:10 gears on my 1987 ford mustang g.t,installed motorcraft gear fluid,and ford motorcraft friction modifier..This is a must install,it will save your gears in the long haul,preserves

Read More
Helpful (1) (0)

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Q & A (2 Questions, 2 Answers) Ask a Question

do i need to use this stuff i swapped gears about 1 year ago and used friction modifier.....i want to change rear end fluid now...do i need to use the friction modifier ??? thanks

papajohn Year: 2005 Model: GT

Be the First to Answer This Question
Good Question (0) (0)

Application I've scoured the internet looking for recommended methods of application and found nothing. Do I apply this gear by gear with a brush or do I just toss this in at the same time with the diff fluid?

SeminolePride Year: 2003 Model: GT

Question Resolved
Good Question (1) (0)
  • It's designed to be poured directly in to transaxle case using a limited slip differential also referred to as a "Posi" meaning both wheels spin when power is applied. I would suggest pour entire bottle in first then pumping in your new fluid fill just below the fill hole plug. Check your year and model for specfication on filling level and fluid requirements. You may notice a faint noise from the differential for a few days until the new fluid and additive impregnate the clutch pads and it will go away nothing to worry about.

    Helpful (3) (0)

    Best Answer

    RSM54 Year: 2006 Model: V6

    Top 100 Contributor

Show 1 more answer

Reviews (12) Write a Review

  • 5 Stars .75 75%
  • 4 Stars .17 17%
  • 3 Stars .08 8%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
4.7

out of 5 stars

11 Customers Recommend this Product

Installation Time:Less than 1 Hour

  • Performance Gain: 4.166667 4.2/5
  • Fit: 4.75 4.8/5
  • Bang For Your Buck: 4.416667 4.4/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    February 25, 2014

    No more gear whine.

    Ford Racing Friction Modifier is a must for any gear swap or route gear fluid change. It makes a huge difference in avoid chatter and gear whine. If your going change your gear oil pick this up and do it right the first time!

    Top 100 Contributor

    RSM54

    Year: 2006 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Boston, MA, USA

    Helpful (1) (0)

  • 4/5 Yes, I recommend this product

    March 23, 2013

    This is a quality product

    I would recommend this product to anyone who is planning on install gears at some point in time.

    Cjackson

    Year: 2004 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Corbin, KY, USA

    Helpful (1) (0)

  • 4/5 Yes, I recommend this product

    February 11, 2013

    Changing differential oil? Buy this!

    This is something you want to buy along with your gear oil when swapping gears, or just doing maintenance with your differential. It will make sure that your trac-lok system works the way it was intended. No one wants a "One Tire Fire", spent a few extra dollars to buy this and make sure that doesnt happen to you.

    Louis

    Year: 2011 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 pa

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    January 19, 2013

    A must to do!!!

    I installed ford 4:10 gears on my 1987 ford mustang g.t,installed motorcraft gear fluid,and ford motorcraft friction modifier..This is a must install,it will save your gears in the long haul,preserves the gears,and fluid.You are crazy if you don't install the friction modifier additive

    Bluejean

    Year: 1987 Model: GT Driving Style: Show 'Stangs I have owned: 2 Parsippany Nj

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    December 22, 2012

    Did the Job!

    Rear end goes smooth with the fricition modifier in it. You're goong to need a funnel if you have an after market diff cover. Amd I recommend a mask and gloves because it stick stinks very bad. Great product from a great store!!!!!

    Manerd

    Year: 1989 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Iowa, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    November 08, 2012

    3.8 OUNCES OF LIQUID WONDER!

    WHAT AN AMAZING CURE FOR REAR DIFFERENTIAL NOISE, NOT SURE WHY FR FRICTION MODIFIER ISN'T ADDED FROM THE FACTORY!

    SNAKEBIT11511

    Year: 2012 Model: GT500 Driving Style: Daily Driver 'Stangs I have owned: 2 EDISON,NJ

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    November 08, 2012

    Good Product!

    I have used several different friction modifiers in numerous vehicles. In my opinion, this one holds up better than the rest. After severe track conditions, the wear on the parts is less which means I do not have to replace major components as often.

    chood7

    Year: 2006 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 TX

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    March 22, 2013

    Friction modifier

    Great product, and easy to put in. Feels like the rear end is rolling smoother and there is no noise. Both tires light every time now even when doing clockwise donuts. Good product ++

    GirthBrooks

    Year: 2000 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Kansas

    Helpful (1) (1)

  • 5/5 Yes, I recommend this product

    March 22, 2013

    Trusted brand

    My local shop that installs gears suggested that I use the Ford Racing Friction Modifier when going with my 3.73's. He stated that he's always had great service out of this product and uses it all the time instead of the other brands. I value his opinion since he's been setting rear-ends up for 30+ years and his word is good enough for me.

    FastGeezer

    Year: 2013 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Maryville, TN, USA

    Helpful (0) (1)

  • 3/5 No, I do not recommend this product

    July 25, 2014

    Makes no difference

    I have used Ford's XL-18 for the transmission and the friction modifier for rear gears and have not noticed any difference with these additives.

    Top 500 Contributor

    machado

    Year: 2014 Model: GT Driving Style: Show 'Stangs I have owned: 2 Central New Jersey

    Helpful (0) (0)

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