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Wheel & Brake Spacers - 5/16 in. - Pair (94-18 All)

Market Price $29.99 You Save 17% ($5.00)
Our Price

$24.99 (pair)

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  • Item 29910
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Features & Details

  • Increases Clearance
  • 5/16" (8mm) Spacers
  • Die-Cast Aluminum
  • Sold as a Pair
  • Fit 5 Lug 5x4.5" Mustang Wheels
Additional Clearance. Sometimes certain wheel, tire and brake combinations may require just a little extra clearance to prevent caliper, inner tire or dust cap rubbing. A quick and easy way to solve these problems is with a set of 5/16" (8mm) wheel spacers from AmericanMuscle.

Durable Construction. These wheel spacers are made from light weight die-cast aluminum for durability and strength, these wheel spacers are designed to last a lifetime.

Application. This set of two 5/16 inch wheel spacers are designed for use with 5 lug 5 x 4.5" wheels.

Technical Note. Longer wheel studs may be required depending on style of wheels and year/model of Mustang.

Fitment: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Details

What's in the Box
  • (2) Spacers
Installation Info
Tech Specs
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • 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, 15, 16, 17
  • 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, 15, 16, 17
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
  • EcoBoost - 15, 16, 17
  • GT350 - 16, 17

People Who Bought This Item Also Bought

Most Helpful Reviews

Wheel Spacers

There thickness is consistent and provide an accurate spacing. However, the elongated holes make it difficult to center them on the studs. In addition, the 1/4" spacing is just enough to pull the wheel ...

Read More
Helpful (16)

worked well

The spacers worked well. I needed the space for mgp covers..No change in handling or ride quality..They worked perfectly..

Helpful (8)

Overall Rating 4.3 out of 5 stars
Read All 54 Reviews

Customer Photos (13) Submit Your Photo

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11 Questions / 7 Answers

Ask a Question

Will these be wide enough? I recently put on 10.5" tires on the rear of my 97 and the tire has about 2mm's of space between this and the shock. I just wanted to push the tire out a tiny bit just so I don't run the risk of it rubbing on my tire. Also will these work with my wheel studs? Or will the studs become too short?


  • The 5/16" spacer is equivalent to 7.93mm and they will begin to push the wheel off of the hub ring, and could cause vibrations when driving. Additionally, the stock wheel studs may be too short for the wheel to be fastened with the lug nuts, and we would recommend extended and reinforced studs. If you perhaps could get away with a smaller spacer, such as a 3/16" (5mm), this will not require long wheel studs for sure.


Helpful (5)

Are these spacers hub centric?


  • No, they are not hub centric. I used two pieces of painters tape to hold them in place then pulled the tape out once the wheel was installed.


Show 1 more answer Helpful (1)

I have a 03 Mach 1 with older AFS Mach1 style wheels.They used to come 9" Rear 8 Front. I was wondering if its safe to install 5/16 spacers in front also. Also by counting turns on lug nuts when installing wheels im doing 4 1/2 this enough or should i need longer studs.??


  • The Wheel & Brake Spacers are safe to use front or rear wheels as long as proper lug nut thread engagement is still present. With a Mustangs 1/2"x20 Lug nuts, we typically like to see 8 turns of the lug nut from initial install to final torque of 100 Ft Lbs. With only 4.5 turns, we would recommend looking in to a longer stud, especially if spacers are planned.

    Rob D

Helpful (0)

I Have a 2017 Gt without the PP, I'm looking to upgrade to the Brembo front brakes from stock. With a 19-8.5 rim would these provide enough clearance to avoid any issues with the new brakes? Thanks!


  • Hello! The spacers should give you proper clearance for the Brembo kit to fit.


Helpful (0)

I bought the spacers and now need longer wheel studs. What length do you recommend and do you heve them in stock? Thank you


  • Hello! Our wheel stud availability, and size options will depend entirely on what year mustang you have. Please give us a call or email in so we can help you further. You can reach us here:


Helpful (0)



  • These spacers would work for your stock 18 inch wheels, however with them being 5/16 inch you may need to get longer wheel studs.


Helpful (0)

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Customer Reviews (54) Write a Review

Overall Rating 4.3

out of 5 stars

  • 3/5

    April 27, 2010

    Wheel Spacers

    There thickness is consistent and provide an accurate spacing. However, the elongated holes make it difficult to center them on the studs. In addition, the 1/4" spacing is just enough to pull the wheel off the the hub index and there is very little stud length left.


    Helpful (16)

  • 5/5

    May 26, 2010

    worked well

    The spacers worked well. I needed the space for mgp covers..No change in handling or ride quality..They worked perfectly..

    kevin dozier

    Helpful (8)

  • 5/5

    November 11, 2012


    Solid build materials. Works as to allow OEM wheels to clear Bremo Brakes.


    Year: 2011 Submodel: GT Colorado Springs, CO, USA

    Helpful (6)

  • 3/5

    March 20, 2011

    .25 in. wheel spacers

    these did exactly as i wanted cuz my rims are too wide for my car so they were rubbing my inner wheel well so i needed just a little space for clearance HOWEVER be aware that these are defanitely going to shorten the thread availability on your studs i actually had to buy extended studs and turned a couple hour job max into A 15 HOUR JOB.i would suggest the 1 in spacers that include the stud on the spacer itself.

    Jon B.

    Year: 2007 Submodel: V6

    Helpful (6)

  • 5/5

    October 08, 2010

    1/4 spacers

    works great, fast shipping ,good price

    Robert Vickers

    Helpful (6)

  • 1/5

    July 08, 2012

    Wheel Spacers 5/16 inch

    The spacers are good quality aluminum parts but what they don't tell you is the wheel studs are too short to use them. You have to change the studs or risk loosing the wheels while driving down the road. It isn't worth the time or the cost to change the studs so you're better off buying the indexed spacers that bolt on and have their own studs for the wheel. A good idea but it doesn't work without major modification.


    Year: 2009 Submodel: GT Houston, Texas USA

    Helpful (5)

  • 5/5

    July 31, 2010


    realy make perfect space betwen caliper cover and the wheel and look nice

    felix ramos

    Helpful (5)

  • 5/5

    March 30, 2010

    Worked great

    I used these to provide the necessary space between the caliper covers I purchesed from AM and my factory 18" 5 spoke chrome wheels

    John M

    Helpful (5)

  • 5/5

    January 22, 2012

    5/6 Spacer

    These spacers seem to work well for what they were made for but I ended up needing 1/2 instead of the 5/16. They were still made well and I would recomend them if they are thick enough for what you need. The bolts did not need to be replace on my mustang to use these.


    Year: 2006 Submodel: GT

    Helpful (4)

  • 5/5

    June 29, 2011

    Not good

    Sorry to say that this product is not good. These are cast aluminum and there is only about 1/16 inch of material on the hub side by the lug holes. Made in China and looks like it. Returned for credit. Easy return policy and will use it for other excellent products American Muscle sells.

    Jean Gaye

    Year: 1995 Submodel: GT

    Helpful (4)

  • 5/5

    June 23, 2011

    wheel & brake spacers

    i had bought covers for my brake calipers. just not enough clearance. but these spacers worked perfect. inexpensive and arrived in 2 days.


    Year: 2008 Submodel: Bullitt

    Helpful (4)

  • 5/5

    March 11, 2016


    I really like the spacers theres no problem driving with it and it fit my big brembo breaks with my new wheels


    Year: 2014 Submodel: GT

    Helpful (3)

  • 5/5

    December 17, 2012

    Requred for My Setup

    My 06 GT with AM 19" Chrome Offset Bullitt Deep Dish wheels required the spacer in order for the back rims to clear the caliper covers. The 19x8.5" rims in the front DID NOT require the spacer but the 19x10" in the back certainly did. Simple product that provides a simple advised it will move the tire further to the outside of the wheel well increasing debris that is picked up and thrown against the rear fender. Worth it.


    Year: 2006 Submodel: GT Abq, NM

    Helpful (3)

  • 1/5

    June 02, 2015

    Terrible product

    it will destroy your stock bolts eventually if you don't use extended bolts because it makes lug nuts bit on less thread of each bolt so the force on less thread and they will wear out soon. i had them on for few hours. and unbearable vibration noise. total waste of money and time


    Year: 2006 Submodel: V6 Quincy, MA

    Helpful (2)

  • 4/5

    January 31, 2014

    Great for caliper covers

    Bought these just in case I needed the clearance for the caliper covers. They do the job.


    Year: 2013 Submodel: V6 Arlington, WA, USA

    Helpful (2)

  • 5/5

    March 19, 2012

    A needed part

    I have a 2007 V6 Mustang and put on 2007 GT stock Bullitt rims with 235/55/17's. I defiantly needed the spacers for my front wheels to clear the caliper covers. Just order them with the covers and have them ready just in case you need them.


    Year: 2007 Submodel: V6 Michigan

    Helpful (2)

  • 5/5

    July 13, 2011

    1/4 wheel spacers

    A little concered about the remaining length of stud but they seemed to work great. Good product.


    Year: 1995 Submodel: GT

    Helpful (2)

  • 5/5

    February 20, 2011

    1/4" spacers

    Work great. Provides space for wheels to clear caliper covers.

    Freddie Waldo

    Helpful (2)

  • 4/5

    August 19, 2010

    Wheel Spacers

    Great product..Fitment was not an issue..Thanks


    Helpful (2)

  • 5/5

    July 14, 2010

    1/4" wheel spacer

    The spacers worked great


    Helpful (2)

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