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Stainless Steel Differential Cover Bolts - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

Item 18247
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    Features & Details

    • Upgraded Hardware
    • Stainless Steel Construction
    • 15% Stronger Than Grade 8 Steel
    • 12 Point Head Design
    • Made in the USA
    • Fits 1986-2014 8.8" Equipped Mustangs
    Performance Upgrade. Securely mount your Mustangs 8.8" Rear Differential Cover by replacing that old weak stock hardware with high strength ARP Fasteners. ARP Fasteners are ideal for high performance street and track Mustangs.

    Premium Quality. Made in the USA from specially-engineered stainless steel that features a polished finish to resist corrosion, these ARP Differential Cover Bolts are hardened to a tensile strength of 170,000 psi to provide superior strength for long-lasting performance. These ARP stainless steel bolts are 15-percent stronger than standard Grade 8 steel.

    Application. These Stainless Steel ARP Header Bolts are designed for use on 1986-2014 Mustangs equipped with the 8.8" rear end, including the 2011-2014 V6, 1986-2014 GT, Bullitt, Mach 1, 2007-2012 Shelby GT500 and 1993-2004 SVT Cobra.

    Technical Note: Not compatible with aluminum differential covers.

    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 2010 2011 2012 2013 2014 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (10) Bolts
    • (10) Washers
    Installation Info
    Tech Specs
    • Material : Stainless steel
    • Finish: Polished
    • Head Style: 12-point
    • Thread Size: 5/16 in
    • Underhead Length: 0.750 in
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 00, 01, 03, 04
    • Cobra R - 93, 95, 00
    • GT - 87, 88, 89, 90, 91, 92, 93, 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
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 86
    • V6 - 11, 12, 13, 14

    Fits Mustangs equipped with a 8.8" rear end only. Not compatible with aluminum differential covers

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        Questions & Answers (3)

        3 Top Rated Questions

        Hello. I was going to purchase this set of bolts but I see this note: "Technical Note: Not compatible with aluminum differential covers." What bolts would be recommended for aluminum differential covers? Thanks~

        • The bolts that we recommend would be 304 stainless steel bolts. You can either get those or zinc coated steel as the aluminum bolts will not react well with the differential covers.

        Helpful (1)

        Have a 88 Mustang gt.Will these work with the ford racing diff cover 8.8 gear that you have on your website?

        • Unfortunately, these bolts will not work with aluminum differential covers and will not work with the Ford Performance differential cover due to that cover being aluminum.

        Helpful (0)

        will these fit the frpp finned cover? are these bolts long enough for use with the gt500 aluminium finned cover?

        • Not ment to be torqued down onto aluminum covers

        Helpful (0) Show 1 more answer
        Post Your Question

          Customer Reviews (20) Write a Review

          Overall Rating 4.6

          out of 5 stars

          • 5/5

            August 25, 2019

            Great looks and quality

            They look great on the stock steel cover if you clean it up and paint it, but be aware they will not fit on the Ford Racing cast aluminum cover, and probably other aluminum covers.


            Year: 2013 Submodel: V6

            Helpful (0)

          • 5/5

            May 04, 2019

            Works great

            Bolts worked great. They take a ⅜ 12 point, which would have been nice to been labeled on the package. They look great as well. Highly recommended.


            Year: 2018 Submodel: GT

            Helpful (0)

          • 5/5

            December 27, 2018

            Differential cover bolts

            They fit well and added looks to the cover. They seem stronger than the factory parts. The manufacturer makes a good quality part.


            Year: 2006 Submodel: GT

            Helpful (4)

          • 5/5

            July 23, 2018

            Diff bolts

            Beautiful bolts, perfect fit, fast delivery, really accents the aluminum differential cover, there is nothing worse than a great looking differential with rusty bolts, totally happy with everything


            Year: 1992 Submodel: LX

            Helpful (6)

          • 5/5

            February 07, 2018


            Great pieces of art. Just what i was waiting. Five stars seller !!!


            Year: 2011 Submodel: GT

            Helpful (6)

          • 5/5

            December 23, 2017

            Great quality

            These bolts are high quality material. I’m very happy in knowing that my differential cover is sealed with high quality bolts that I can depend on under both Street and track conditions. 5/5 stars would recommend.


            Year: 2013 Submodel: GT

            Helpful (6)

          • 5/5

            December 09, 2017

            Looks good

            Altogether looks good Went together nicely and looks great


            Year: 2007 Submodel: GT

            Helpful (6)

          • 1/5

            October 15, 2017

            ARP is the best

            I am a huge fan of arp fasteners. These look great just caution: will not work with aftermarket covers.


            Year: 2004 Submodel: Cobra

            Helpful (8)

          • 5/5

            September 18, 2017

            Great product.

            Looks great, works great, fast shopping. Definitely first place to go for Mustang parts!


            Year: 2000 Submodel: GT

            Helpful (6)

          • 5/5

            August 04, 2017

            ARP Bolts

            This company name stands alone in security of holding $1000's of dollars worth of internals together...a must have for peace of mind...


            Year: 2007 Submodel: GT

            Helpful (6)

          • 4/5

            July 28, 2017

            Great quality

            These bolts were definitely stronger than stock and added a nice accent to the differential. The only bad thing is I changed the cover shortly after and was unable to use these due to them not long enough.


            Year: 2011 Submodel: GT

            Helpful (6)

          • 4/5

            June 19, 2017

            Show bolts

            The bolts are very nice and look awesome. They will make your diff cover look like a million bucks. Threw me off that they are for chevy although you sell nothing but ford parts,so im not using not for that reason,im sure they would work great on a stock cover. I had ordered a ford racing cover which is much much thicker on the edges and the bolts would never be long enough to work. Ordered them thinking i needed them but the cover came with long bolts so thats good. Just spent 25$ on chevy parts ill never use now tho. Bummer.


            Year: 2004 Submodel: GT

            Helpful (6)

          • 2/5

            September 12, 2016

            too short

            awesome quality bolts and great for the stock diff cover but most aftermarket diff covers (like the gt500 cover i just installed) are thicker so these will only thread in with about two threads. had to go purchase slightly longer bolts. don't waste your time buying these if your installing an aftermarket diff cover.


            Year: 2005 Submodel: GT

            Helpful (7)

          • 5/5

            June 12, 2015

            Differential cover bolts

            The bolts look great with my new differential cover


            Year: 2005 Submodel: GT East Massapequa, NY

            Helpful (7)

          • 5/5

            May 29, 2015

            ARP Stainless Steel Differential Cover Bolts - 8.8in (86-14 GT, Mach 1; 07-12 GT500; 93-04 Cobra; 11-14 V6)

            Purchased the ARP differential bolt kit for my Mustang. They bolts are the correct length for the stock differential cover, however did not work with the Steeda finned differential cover that i had also purchased. The thickness of the cover was larger then factory cover, so the bolts were not long enough. Keep that in mind when purchasing.


            Year: 1990 Submodel: Other Malvern, PA

            Helpful (6)

          • 5/5

            August 27, 2014

            ARP is a must have!

            Can't ever go wrong with ARP. Strength, good looks, and quality! With my ford racing differential cover and these bolts, i feel secure with my rear end and 3:73s. The 12 point design I like too! ARP always goes the extra mile. I recommend these to everyone. Thanks am! Satisfied as always!


            Year: 2002 Submodel: GT La Crosse, WI, USA

            Helpful (6)

          • 5/5

            August 26, 2014


            Bolts are super strong. and have a much cleaner look then the stock bolts.


            Year: 2002 Submodel: GT norh carolina

            Helpful (5)

          • 5/5

            May 18, 2013

            Great looks and great security

            One can never go wrong with ARP fasteners. These bolts look awesome on my aluminum diff cover, and I love the peace of mind I feel knowing that my assembly is that much more secure and strengthened by these fasteners. A very worthwhile investment. I thoroughly recommend them.


            Year: 1990 Submodel: Other Flower Mound, TX, USA

            Helpful (6)

          • 5/5

            April 24, 2013

            Very simple dress-up

            Simple dress-up for the rearend of your Mustang makes it stand out.


            Year: 1996 Submodel: Cobra Grafton, OH, USA

            Helpful (5)

          • 5/5

            April 19, 2013

            worked great just as expected

            After breaking a stock bolt I decided to go with arp and good thing I did, the stockers seemed weak compared to my new and improved arp bolts. I recommend these to everyone even if you're simply just going to go through your rear differential to check things out.


            Year: 1996 Submodel: Cobra Houston, TX, USA

            Helpful (6)

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