Customer Reviews (17) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Weekend

Installation Cost:$100-$250

• Performance Gain 4.125 4.1
• Fit 4.529412 4.5

• 3/5

  Installation Time: Full Day

  July 03, 2018

  More Punch

  The 355 gears are a great middle ground choice you get more out of the hole and a lot more snap at speed when put the hammer down with out losing your cursing ability Love it ! Richard

  RichardT

  Year: 2011 Submodel: GT

  Helpful (0) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5
• 5/5

  Installation Time: Afternoon

  July 13, 2017

  A must for 2010 and newer mustangs

  Local parts stores do not sell the correct bearing for 2010 and newer mustangs..you must get them here or local ford dealer

  Waistedmymoney

  Year: 2014 Submodel: GT

  Helpful (3) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5
• 5/5

  Installation Time: Afternoon

  June 10, 2017

  Rear gear pinion bearing

  The item was just as described and has been working great installed @3,000 miles ago made the rear end noise that I had go away.

  Mark2010

  Year: 2010 Submodel: GT

  Helpful (3) Thanks for your input!

  • Performance Gain 1

    1

  • Fit 5

    5
• 1/5

  Installation Time: Afternoon

  April 04, 2016

  Does not fit any torsen rear end

  This does not fit the 2013 boss. This bearing is not for the torsen diff

  DMCAP

  Year: 2013 Submodel: Boss

  Helpful (5) Thanks for your input!

  • Performance Gain 1

    1

  • Fit 1

    1

  • Bang for your Buck 1

    1
• 5/5

  Installation Time: Shop Install

  Installation Cost: $100-$250

  February 15, 2014

  Nearly forgot them!

  You MUST purchase this bearing when changing your gears! The old one will get damaged if you remove it from the old pinion. I nearly forgot to purchase this, But while talking to an AM CS agent he reminded me to buy this... He was right, My mechanic asked me if I had it as soon as I told him I was there for a gear change! Saved me from having any delays!! :)

  Rush

  Year: 2013 Submodel: V6 Los Angeles, CA

  Helpful (3) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $250-$500

  January 24, 2014

  needed for gear change

  any time you swap gears or if your building the rear in your car you'll need to buy a new pinion bearing.

  LOUISSIUOL

  Year: 2011 Submodel: GT pa

  Helpful (4) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $100-$250

  March 23, 2013

  new pinion bearing

  I had the bearing and 331 ring and pinion gears installed by a 2nd party. After 400 miles all seems OK. It's really difficult to review something like this unless it causes a problem.

  OkieHick1

  Year: 2012 Submodel: V6 Broken Arrow, OK, USA

  Helpful (7) Thanks for your input!

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $250-$500

  July 27, 2012

  From 3.15 to 3.73

  I recently upgraded my rear gears from the stock 3.15s to 373s. It was highly recommended that I replace the stock pinion bearing during the process. So, just to be safe, I did. I have had NO issues whatsoever and the gear install went smooth as silk. Do yourself a favor and replace the Pinion Bearing with your gears. There is always that chance of the stock bearing not working with the aftermarket gears. At the least, purchase this for the piece of mind.

  CHiZ65

  Year: 2011 Submodel: GT Marina Del Rey, CA, USA

  Helpful (5) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $100-$250

  July 27, 2012

  Perfect part

  I knew I need a new bearing prior to install so I picked one up from AM, which was cheaper than going through the dealership. Had the gears installed through a shop and they had no problems with the install. Car runs perfect with the new gears and bearing. No noise. Almost like it came with them straight from the factory. Great price/product from AM, and as always fast shipping. Will definitely do business again with AM.

  Morty33

  Year: 2011 Submodel: GT California, USA

  Helpful (4) Thanks for your input!

  • Performance Gain 4

    4

  • Fit 5

    5

  • Bang for your Buck 4

    4
• 5/5

  Installation Time: Full Day

  July 27, 2012

  These are sick!!!

  I love these gears, I had them installed by a professional mechanic and he said that it was a pain to install the gear pinion bearing. So be advised, installing these on a 2010 gt might be a bigger pain than normal. Besides that, I love these gears! It really woke my car up.

  SARswimmer

  Year: 2010 Submodel: GT San Diego

  Helpful (4) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 2

    2

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Weekend

  July 27, 2012

  If it's 2010 or newer ya need it

  Fits the 2010 and newer mustangs. I was changing my gears and throwing in a new LSD so I figured I might as well get seals and bearing kit but it doesn't have this bearing I don't know what was different about it but I put it in instead of the one that came in the kit and it worked great . . . I gave it average for performance well because you just kinda need it haha it didn't give me a performance gain over stock.

  S3phf1re

  Year: 2010 Submodel: GT Galloway, NJ, USA

  Helpful (4) Thanks for your input!

  • Performance Gain 3

    3

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $100-$250

  June 01, 2012

  A Must Have

  I bought this kit along with the main bearing kit for my new FRPP 3.73 gear install on my 2012 GT/CS. Even though there was only 2k miles on the new car. it makes no sense to use an used bearing. do it right the first time and you'll never have to worry about it.

  Scott347

  Year: 2012 Submodel: GT Surprise,Arizona

  Helpful (2) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  April 13, 2012

  one stop shoping

  Purchased this along with 4.56's so I didn't have to remove the bearing from my origanal pinion so if I needed to switch back I didn't have to reset the pinion depth.Makes going back to my origanal 3.73 setup easy if needed.

  KaiW

  Year: 2010 Submodel: GT Reno NV

  Helpful (4) Thanks for your input!

  • Performance Gain 3

    3

  • Fit 5

    5

  • Bang for your Buck 4

    4
• 4/5

  Installation Time: Shop Install

  March 24, 2012

  Gears for a 2011 mustang v6

  With the stock 2.73 gears the v6 mustang gets great gas mileage but lacks the 'get up and go' that I wanted for the price. But a simple gear upgrade has opened up my budget pony car. I will say in my area it was hard to find a shop that would even touch a car as new as mine. So I do wish American muscle would include some install instructions.

  Kalin07

  Year: 2011 Submodel: V6 Caroline, va

  Helpful (3) Thanks for your input!

  • Performance Gain 4

    4

  • Fit 4

    4

  • Bang for your Buck 4

    4
• 5/5

  Installation Time: Afternoon

  March 01, 2012

  Ford Performance ring and pinion 3.55 ratio from am

  the ford performance3:55 ring and pinion fit perfict. no problems i did buy the pinion bearing and shim kit. i did not need the shim kit, but definitly buy the bearing. the gears are as quiet as the oem gears. recommend highly. if you install a gear ratio other than stock ford (e.g. 273-321 ratio) you will need a bhama tuner to reset the speedo. the best purchase ever from am. i no longer have a speed limiter either. this pony will run!!! (one last note, am was cheaper than summit and jegs.)

  jimford

  Year: 2012 Submodel: V6 So. Il.

  Helpful (4) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  December 07, 2011

  A MUST have on-hand when doing a gear swap.

  So glad I purchased this bearing before hand, 9 out of 10 times when pressing the old pinion bearing off it will be trash. Glad I had it NO DOWN TIME !!

  Ralph289

  Year: 2011 Submodel: V6 Central FL

  Helpful (4) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Full Day

  December 07, 2011

  No Problems

  Worked like a champ, no problems at all. Arrived nicely packed and was the exactly the same as the original.

  Markman

  Year: 2011 Submodel: GT Colorado Springs

  Helpful (4) Thanks for your input!

  • Performance Gain 5

    5

  • Fit 5

    5

  • Bang for your Buck 5

    5