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SR Performance Polyurethane Spring Isolators - Front (79-04 All)

Market Price $34.99 You Save 14% ($5.00)
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FREE Shipping on orders over $49
  • Item 56054
  • MPN# 56054

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Features, Video & Details

  • Made of Graphite Impregnated Urethane for Long Life
  • Improves Handling and Steering Response
  • Includes Drivers Side and Passengers Side
  • Fits 1979 to 2004 Mustangs

Review & Installation Video

Review & Install Video

Performance Upgrade. If you are installing a new set of lowering springs it is a good time to replace your old worn out rubber Spring Isolators with a new set of SR Performance Polyurethane Spring Isolators available from AmericanMuscle.

Superior Materials. These SR Performance Polyurethane Spring Isolators are made from polyurethane that has been impregnated with graphite so they will not dry out and crack like the stock rubber pieces.

Application. Designed to replace the stock front 1979-2004 rubber units these SR Performance Spring Isolators will greatly improve the handling and steering response of your lowered pony.

Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
Hardware included:
  • None Required
Installation Info
Tech Specs
Will it fit my Mustang?
  • Bullitt - 01
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

People Who Bought This Item Also Bought

Most Helpful Reviews

does the job

easy to install, does the job great, nice and quiet springs now

Helpful (1)

Nice to have

These are simple to install and replace the factory worn out ones.

Helpful (1)

Overall Rating 4.9 out of 5 stars
Read All 93 Reviews

Customer Photos (12) Submit Your Photo

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2 Questions / 6 Answers

Ask a Question

Do you have to apply any grease to the isolators? I know poly suspension bushings usually require greasing to keep the noise down - are these similar? or just plug-n-play without any greasing needed?


  • No grease is required or recommended. Very clean install and no squeaks when I installed them with new lowering springs.


Show 1 more answer Helpful (0)

How much does it raise the front?? I bought some H&R lowering springs for my 04 cobra convertible and whoever had her before me lowered it without isolators and i didn't buy new ones. it sits too low really and bottoms out way too much. how much can i expect these isolators to raise the car back up? besides a different set of springs what can i do to raise her up a little if the isolators aren't enough?


  • You can expect these Isolators to increase the ride height of your car no more than 1/4" to 3/8". Figure the thickness of the Isolators (top and botton) minus a small amount for comression of the Polyurethane.


Show 3 more answers Helpful (0)

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Customer Reviews (93) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

Installation Cost:0-$100

  • Handling Improvement 4.644068 4.6
  • Ride Quality 4.694915 4.7
  • Appearance 4.775862 4.8
  • Bang For Your Buck 4.793103 4.8

  • 5/5

    Installation Time: Less than 1 Hour

    January 29, 2017

    does the job

    easy to install, does the job great, nice and quiet springs now


    Year: 1994 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    January 19, 2017

    Nice to have

    These are simple to install and replace the factory worn out ones.


    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    November 28, 2016

    Great product! Smooth ride.

    Easy to install. Smooth ride with reduced road noise through suspension.


    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    November 10, 2016

    Worth it!

    I was quite suprised how bad my factory isolators were .....very collapsed and very ones fit like a glove and are quiet and just makes the new Springs look that much better


    Year: 2002 Submodel: V6

    Helpful (1)

  • 1/5

    November 06, 2016

    waste of money

    the lower isolator was impossible to get into the coil of the spring. Ended up having to use the stock isolators.


    Year: 2003 Submodel: Cobra

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    November 01, 2016

    Works good.

    This got rid of the squeak in the front and rides softer now.


    Year: 1998 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 18, 2016

    Everything lines up and worked great!

    I just started ordering from AM and so far im impressed with everything. These felt nice and when i installed these with my new lowering springs 90 of my front end clanking is now gone!


    Year: 2001 Submodel: GT

    Helpful (1)

  • 5/5

    September 20, 2016

    Perfect fit

    I had no priblems installing these on my Ford 'C' coil springs. Fit like a glove. Would recommend installing these when switching out your factory coil springs.


    Year: 1997 Submodel: Cobra

    Helpful (1)

  • 5/5

    September 13, 2016

    Highly recommend

    Installed these with my SR lowering springs. Factory ones were worn out. Install was easy. There is no noise. Super happy with the purchase!


    Year: 1997 Submodel: GT

    Helpful (1)

  • 5/5

    August 20, 2016

    Much needed and very necessary

    I didn't listen to AM recommendation when purchasing lowering springs. Man oh man were my factory isolators DONE. Completely shredded and hanging on with cracks. I'm glad I'm at peace with these.


    Year: 2001 Submodel: GT

    Helpful (1)

  • 4/5

    March 29, 2016

    Front SR Isolators

    Ya the isolators are they way to go Nice fitment I purchase both front and backs For my ford racing c springs and with tubular control arms new struts with bushings and camber bolt my car has SLP cat back with stock cats did not want to risk bottoming out the cats / Kmember on NH back roads clearing driveways better handling with this combination best bang for your buck


    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    January 22, 2011

    Great Product

    These things are awesome when i replaced my springs with bbk super sport lowering springs and had seen how nasty the stock isolators were i knew it was a good thing that i had purchased these i would recommend getting some silicone spray it helped to get the bottom isolator on the spring but the drastically improved the feel of the spring in my 04 Mustang GT


    Year: 2004 Submodel: GT

    Helpful (3)

  • 5/5

    October 15, 2010

    a MUST if lowering your car

    i thought my car would have good stock isolators to reuse when i got my springs, but soon i found out that they are worn out! these things are a must if you are lowering your mustang and want to avoid squeaky noises that are going to make your car sound like a hoopty. do not regret buying these (not to mention the material feels extremely sturdy)


    Helpful (3)

  • 5/5

    March 27, 2010

    Work Great

    Cut down on alot of road noise after replacing the stock isos. Fit great, easy to install.


    Helpful (3)

  • 5/5

    October 13, 2009

    Buy these

    These are a must when changing your springs. Don't leave those dried out and cracked ones for your new springs!


    Helpful (4)

  • 5/5

    February 21, 2010

    Needed part

    If you plan on either upgrading or lowering your Stang, you will need to get these. They are very easy to install and will help if your stock ones are bad or if you just want to replace the ones you have now.


    Helpful (5)

  • 5/5

    January 19, 2010

    BBK Isolaters

    A must mod when lowering your mustang, great quality. 8k mi. no issues.

    Shelby H

    Helpful (5)

  • 5/5

    Installation Time: Afternoon

    December 13, 2011

    Must have

    if your changing springs, my old bushings were almost fully deteriorated. these fit awesome and were a direct replacement. greatly reduces road noise.


    Year: 2000 Submodel: GT Houston, TX

    Helpful (2)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    October 15, 2015

    Front spring Isloators

    The upper front spring isolators went in with no problem, the lower isolators were to thick to install, my front end guy left them out. My LX drives and handles great without them. Time will tell after driving it for a while will see how it works. I would recommend this kit if you are rebuilding your suspension.


    Year: 1990 Submodel: Other Vancouver,Wa

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    August 11, 2015

    Great isolators, great price

    Absolutely great isolators, great quality and easy to install. Come at a great price and you can avoid having to wrap your springs in electrical tape for a much cleaner install. Highly recommended if you are replacing your springs!


    Year: 2000 Submodel: GT Philapelphia, PA

    Helpful (1)

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