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Ford Performance 3.55 Gears and Install Kit (86-09 V8)

Market Price $319.99 You Save 19% ($60.00)

$259.99

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  • Item 100575
  • MPN# 100575

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Money Saving Combo Kit
  • Ford Racing 3.55 Gears - 8.8"
  • Motive 8.8" Rear End Installation and Bearing Kit
  • (1) Bottle of Ford Racing Friction Modifier
  • (2) Quarts of Royal Purple Max Gear 75w90 Gear Oil
  • Fits 1986-2009 V8 with 8.8" Solid Rear Axle
Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. This Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

Complete Kit. This Ford Racing Gear and Installation Kit comes complete with all the components needed to swap out your ring and pinion gear. It includes Ring gear, Pinion gear, 1 bottle of Friction Modifier, 2 bottles of 75w90 Gear Oil, gaskets, seals, shims, bearings and all the required hardware.

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.

Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a Speedometer Gear, a Ford Racing Speedometer Recalibration Tool or a Bama SF4/X4 Power Flash Tuner is a quick and easy way to fix this issue.

Application. This Ford Racing 3.55 Rear Gear and Installation Kit is designed for use with 8.8in solid rear axle equipped Mustangs, including the 1986-2009 GT, Bullitt, Mach 1, Shelby GT500 and 1994-1998 SVT Cobra. It will not fit the 1999-2004 IRS equipped Cobra Mustangs.

Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed, see drop down option above.

Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Details

What's in the Box
  • (1) Ring gear
  • (1) Pinion gear
  • (1) 3.8 fluid oz bottle of Friction Modifier
  • (2) one quart bottle of Royal Purple Max Gear 75w90 Gear Oil
  • Front & Rear Pinion Bearing
  • Pinion Seal
  • Carrier Bearings
  • Carrier Shims
  • Differential Bearings
  • Crush Sleeve
  • Pinion Nut
  • Cover Gasket
  • Ring Gear Bolts
  • Brush
  • Gear Marking Compound
  • Loctite
Installation Info
Will it fit my Mustang?
  • Foxbody - 86, 87, 88, 89, 90, 91, 92, 93
  • Cobra - 93, 94, 95, 96, 97, 98
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09
  • Bullitt - 01, 08, 09
  • Mach 1 - 03, 04
  • GT500 - 07, 08, 09

Most Helpful Reviews

5/5
the best value by far

I shopped around and even checked if a competitor could beat your gear/install kit deal and they could not get anywhere close to it. It has everything you need for a great price, what more do you wan ...

Read More
Helpful (1)

5/5
Great improvement!

Put these gears in my 04 gt mustang, now has a lot better launch and 60-100 pull. Worth every penny. Have a shop do the work if you don't know how to set pinion depth...

Helpful (1)

Overall Rating 4.5 out of 5 stars
Read All 13 Reviews

Customer Photos (1) Submit Your Photo

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1 Questions / 1 Answers

Ask a Question

Does this kit use the same hardware from the :FORD RACING RING PINION INSTALLATION KIT W/ HIGH TORQUE BEARING - 8.8IN (86-14 V8, 99-04 COBRA, 11-14 V6)?

TJ21

  • Yes, the Ford Performance 3.55 Gears and Install Kit (86-09 V8) is comprised of what is included in Ford Performance Ring & Pinion Installation Kit w/ High Torque Bearing - 8.8in (86-14 V8, 99-04 Cobra, 11-14 V6) (Item #50511)

    JeffAM

    Good Answer (1) (0)

Answer This Question I need this answered (0) (0)

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Customer Reviews (13) Write a Review

Overall Rating 4.5

out of 5 stars

Installation Time:Full Day

Installation Cost:$250-$500

  • Performance Gain 4.222222 4.2
  • Fit 5 5



  • 5/5

    July 15, 2016

    the best value by far

    I shopped around and even checked if a competitor could beat your gear/install kit deal and they could not get anywhere close to it. It has everything you need for a great price, what more do you want?

    ttocs

    Year: 1994 Submodel: GT

    Helpful (1) (0)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    March 03, 2016

    03mustanggt

    Had these install by a shop and they work great you can feel the pull over the stock gears i would recommend these to everyone

    mustangman

    Year: 2003 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    December 18, 2014

    3.55 Gear Install Kit

    This kit came with all necessary items to replace my much needed bearings, ring and pinion.Noticed better acceleration as well after breaking in the gears. Would recommend this kit to anyone who wants more acceleration without sacrificing fuel economy. Thanks AM!

    Walton

    Year: 2002 Submodel: GT Edinburg, TX, USA

    Helpful (1) (0)

  • 1/5

    Installation Time: Afternoon

    October 09, 2014

    Whining after install

    Installed gears and upon completion and ensuing test drive found it had a whine. Re-checked everything and it was perfect. I ended up talking to several shops who said that recently they have had issues with Ford Racing gears whining. Ended up buying another set different brand and no whine now.

    JokerJamN

    Year: 2002 Submodel: GT Kentucky, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    September 23, 2014

    Ford Racing Gears 3.55 and Install Kit

    Order delivered in 2 days. Parts were as expected high quality. Installation was done by a local speed shop and their comment on parts were everything needed was there and high quality. Very happy with the results.

    GT460

    Year: 2009 Submodel: GT Rome, NY, USA

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    July 23, 2014

    Definitely a seat of the pants performance improvement

    It's not going to give you more HP or Torque but it certainly makes the car feel faster. May take a bit to get used to the new shift points but that just makes my 20 year old pony feel like new.

    94GTconvertible

    Year: 1994 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Full Day

    April 18, 2014

    Great improvement!

    Put these gears in my 04 gt mustang, now has a lot better launch and 60-100 pull. Worth every penny. Have a shop do the work if you don't know how to set pinion depth...

    1Slowgt

    Year: 2004 Submodel: GT Slidell, LA, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    May 03, 2016

    Ford 3.55 Gear Install Kit

    Just finished installing the new gears in my 07 Mustang and couldn't be happier with the kit. EVERYTHING is included. Installation was a snap. If you are considering changing your gears, this is the way to go!

    KEvin

    Year: 2007 Submodel: V6

    Helpful (0) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    July 19, 2014

    Ford Racing 3.55 Gears and Install Kit (86-09 V8)

    The kit was purchase to replace the stock 3.55s in my mustang but at half the cost from a shop and for Ford Racing gears vs. aftermarket. This was a win-win scenario for me! American Muscle is my new favorite web site and I've got big plans for my mustang that will involve a lot more purchases from American Muscle.

    Mickeyglon

    Year: 2007 Submodel: GT Phoenix, AZ, USA

    Helpful (0) (1)

  • 5/5

    Installation Time: Afternoon

    April 23, 2014

    Great gears!!

    The 3.55's were a great upgrade to my stock 2.73 95 Gt. Thanks AM!!

    fomocobro

    Year: 1995 Submodel: GT SwMo

    Helpful (0) (1)

  • 5/5

    October 17, 2016

    Ford Motorspot 3:55 gears

    I recently purchased Ford Motorsport 3:55 rear gears, an install kit and a Ford Motorsport rear cover. I took my car and parts to my friends shop. Later that day he advised me that the pinion gear (in the new kit) wasn't the correct one. I called American Muscle and I spoke with Mike. Mike was able to ship me out a new set of gears and set up my return without any issues. All of the parts have been installed. The original gears were 2:73's. The 3:55's made a great improvement.

    a50ina50

    Year: 1987 Submodel: Other

    Helpful (0) (0)

  • 5/5

    September 05, 2016

    Quality Product and a must have upgrade!

    The Mustang pulls so much harder now. Those factory 2.73 gears were awful. These Ford Gears Installed in 2 hours for a cost of $250 at my local shop. HIghly recommend for those who need to drive on the highway without over revving the engine, but cant still have fun at the track.

    Jay

    Year: 1998 Submodel: GT

    Helpful (0) (0)

  • 5/5

    August 10, 2016

    New parts solved my problem

    Great price on all the stuff you need. You could delete the Synthetic gear lube my repair shop recommended not using it. Noisy whine is gone.

    oldmustangfan

    Year: 2003 Submodel: Mach 1

    Helpful (0) (0)

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