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Ford Rear Gear Pinion Bearing - 8.8 in. (11-14 V6; 10-14 V8, Excluding 13-14 GT500)

Item 52994
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    Features & Details

    • Required for 2010+ 8.8" Gear Installation
    • Ford Part# 9L3Z-4630-A
    • For 2010-2014 GT, 2010-2012 GT500 & 2011-2014 V6 Mustangs
    Required For Installation. Starting in 2010, Ford changed the inner rear gear pinion bearing in all 8.8" equipped Mustangs. Because of this change, you will require a new 8.8" rear gear pinion bearing (Ford part# 9L3Z-4630-A) to install 8.8" gears in your 2010 or newer Mustang.

    Application. This Rear Gear Inner Pinion Bearing is intended for installation of 8.8" rear differential gears on a 2010-2014 GT, 2010-2012 GT500 and 2011-14 V6 Mustangs. Will not fit 2013-2014 Shelby GT500 or Track Pack equipped GT models.

    Fitment: 2010 2011 2012 2013 2014 Details

    MPN# 9L3Z-4630-A

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Rear Gear Pinion Bearing
    Installation Info
    Tech Specs
    Will it fit my Mustang?

        Questions & Answers (8)

        5 Top Rated Questions

        Does this bearing come with the race also?

        • The Ford Rear Gear Pinion Bearing - 8.8 in. contains only the rear gear pinion bearing.

        Helpful (2)

        If the bearing doesn't come with a race, where can I get one? Or will the C L rear gear pinion bearing fit and work will with the ford performance high torque install and bearing kit?

        • The Ford Rear Gear Pinion Bearing - 8.8 in. is required for installation for the 2010 + 8.8" gear installation. It is also a good idea to install the Motive Rear End Installation and Bearing Kit - 8.8 in., item # 21201, (https://www.americanmuscle.com/rearendrebuild.html) when changing out the gears as well. You will not need another race or more bearings if you get this kit.

        Helpful (1)

        Is this bearing the Koyo Hi-Cap M802048-N?

        • No, the part number for this unit is 9L3Z4630A.

        Helpful (0)

        helo is this included in the installation kit ?

        • Unfortunately, the installation kit for the gears will not include this bearing. This would need to be purchased separately from the kit if you have a 2010 and newer Mustang.

        Helpful (0)

        Which Ford Rear Gear Pinion Bearing I need? Will this one fit? I have a 2013/14 Shelby GT500 w/o Track Pack, Axle Code S213C2 - 3.73.

        • Hello! The Ford Rear Gear Pinion Bearing - 8.8in will fit your 2013 or 2014 GT500 rear end

        Helpful (0)
        Post Your Question
        3 More Questions
        I was looking to add some new 4.10 Ford Racing Gears to my car and read on your site that the new pinion bearing is required when installing new gears. But right after that it says will not fit Track Pack GT models. I own a 2013 GT premium. So would I need to order this as well or? 1 answer
        Is this bearing included in the Ford Racing Gear and install kits? 1 answer
        Can this part be install in a 2010 v6 1 answer

          Customer Reviews (21) Write a Review

          Ratings Summary

          4.5 out of 5 overall rating from 21 customers

          Installation Time: Full Day

          Installation Cost: $100-$250





          • September 08, 2019

            5 2012 GT - RONW Installation Cost: $250-$500

            “...2012 ‘5.0’ development proceeding.”

            Tough, top quality component for high performance.

            Helpful (0)
          • March 27, 2019

            5 2014 V6 - choppertwo Installation Time: Afternoon

            355 gears

            it's like a different car now, unbelievable, and to be honest, it really helped with drone since it gets up to rpms more quickly

            Helpful (0)
          • February 06, 2019

            5 2014 GT - JoseA Installation Time: Afternoon

            Gear pinion bearing

            Feels great glad I purchased it my shifts feel way better

            Helpful (2)
          • November 03, 2018

            1 2010 GT - rickydog

            An unnecessary purchase for me

            Even tho I have a 2010, it was built in 2009 so this was not needed when installing new 3.73 gears inn my rearend. As always, AM customer service was great responding to the return.

            Helpful (5)
          • July 03, 2018

            3 2011 GT - RichardT Installation Time: Full Day

            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

            Helpful (7)
          • July 13, 2017

            5 2014 GT - Waistedmymoney Installation Time: Afternoon

            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

            Helpful (7)
          • June 10, 2017

            5 2010 GT - Mark2010 Installation Time: Afternoon

            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.

            Helpful (7)
          • April 04, 2016

            1 2013 Boss - DMCAP Installation Time: Afternoon

            Does not fit any torsen rear end

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

            Helpful (11)
          • February 15, 2014

            5 2013 V6 - Rush Installation Time: Shop Install Installation Cost: $100-$250

            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!! :)

            Helpful (7)
          • January 24, 2014

            5 2011 GT - LOUISSIUOL Installation Time: Shop Install Installation Cost: $250-$500

            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.

            Helpful (8)
          • March 23, 2013

            5 2012 V6 - OkieHick1 Installation Time: Shop Install Installation Cost: $100-$250

            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.

            Helpful (12)
          • July 27, 2012

            5 2011 GT - CHiZ65 Installation Time: Shop Install Installation Cost: $250-$500

            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.

            Helpful (10)
          • July 27, 2012

            5 2011 GT - Morty33 Installation Time: Shop Install Installation Cost: $100-$250

            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.

            Helpful (8)
          • July 27, 2012

            5 2010 GT - SARswimmer Installation Time: Full Day

            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.

            Helpful (9)
          • July 27, 2012

            5 2010 GT - S3phf1re Installation Time: Weekend

            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.

            Helpful (9)
          • June 01, 2012

            5 2012 GT - Scott347 Installation Time: Shop Install Installation Cost: $100-$250

            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.

            Helpful (6)
          • April 13, 2012

            5 2010 GT - KaiW

            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.

            Helpful (7)
          • March 24, 2012

            4 2011 V6 - Kalin07 Installation Time: Shop Install

            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.

            Helpful (8)
          • March 01, 2012

            5 2012 V6 - jimford Installation Time: Afternoon

            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.)

            Helpful (7)
          • December 07, 2011

            5 2011 V6 - Ralph289 Installation Time: Afternoon

            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 !!

            Helpful (8)

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