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J&M Rear Lower Control Arms (99-04 All, Excluding Cobra)

Item 30000
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$181.55 (pair)

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Ship to: Ashburn - 20149
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Improves Traction & Launches
      • Better 60 Ft Times
      • Eliminates Wheel Hop
      • Heavy Gauge Square Steel Tubing
      • Sold as a Set of Two
      • Fits 99-04 Mustangs


      Faster Launches. Improve your 60 foot times and get better, straighter, faster launches with a pair of J&M rear lower control arms. By replacing your factory control arms with a set of J&M's arms, you'll eliminate suspension flex that causes "wheel hop" when you're accelerating or braking.

      Better Handling. Your stock control arm bushings can bind when you're cornering, causing sudden changes in handling. J&M's unique 3-part bushings rotate freely to keep your Mustang's suspension planted even around hairpin turns.

      Industry Leading Design. Unlike other designs that use single piece polyurethane bushings, J&M's patented 3 part bearings offer the best for both straight-line performance and handling. The exclusive design of these lower control arms features a steel inner ball surrounded by polyurethane outer cups. The result is great traction during straight-line acceleration, and bind-free performance during spirited cornering for predictable grip.

      Made to Last. The J&M rear lower control arms are made from lightweight round tubing for maximum strength and finished with a black powdercoat for durability and good looks.

      Application. These J&M rear lower control arms are sold as a pair and are made to fit your 1999-2004 Mustang perfectly.

      Fitment: 1999 2000 2001 2002 2003 2004 Details

      MPN# 23859

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (35)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 35 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • May 06, 2019

        5 2004 GT - JasonB Installation Time: Afternoon

        Great product, car feels tight

        Huge improvement from stock lcr. Great traction and improves entire suspension feel. If your bolts are seized, wd40 and pry bar on back of bolt works. Perfect fit

        Helpful (0)
      • February 03, 2019

        4 2000 GT - skinnyjoe Installation Time: Full Day

        a bit difficult

        the grease it bring is very sticky and the bushing i had to install it separately wasn't already put in.

        Helpful (0)
      • July 13, 2018

        3 2000 GT - SamM

        I was not given all of the bushings.

        When going to install these I was only given 7 rubber bushings. Please help.

        Helpful (3)
      • March 14, 2018

        5 2002 GT - Chris Installation Time: Full Day

        J M

        These control arms are absolutely amazing. I shouldn’t have waited so long to replace the factory ones. Have only had them on a few days but already I can feel the difference. Would definitely buy more from JandM.

        Helpful (3)
      • October 20, 2017

        3 2003 Mach 1 - j Installation Time: Shop Install Installation Cost: $250-$500

        j m control arms

        great upgrade ,feels better than stock.can't say it was the fix-all for live axle vs irs - but better than what it was. thanks amm.

        Helpful (4)
      • June 09, 2017

        5 2002 GT - Wawanesa5speed Installation Time: Full Day

        So so sooooo solid.

        You don't know how badly you need these. They plant the car. Great investment. Best suspension mod so far.

        Helpful (4)
      • June 05, 2017

        5 2003 GT - DarrellS Installation Time: Afternoon


        I decided to do some suspension work on my 2003 mustang and I must say, I wish I did this a long time ago. Great quality and great fit!

        Helpful (3)
      • March 14, 2017

        5 2003 V6 - Jose Installation Time: Full Day

        What a difference..;)..

        This product sure helped out alot gave me back the comfort of my new edge mustang ...feels like when i first got so stiff an in control .i had bought some from ebay an damm they where horrible did not even last 3 months ;( but now my stang is back alive ;)..i would recommend them ..i did the work my self in my garage is easy if u like getting your hands dirty an have skillz..

        Helpful (4)
      • September 16, 2016

        5 2001 GT - Roxanne

        Buy these

        Way better then the SR performance ones, noticed a huge improvement on my launch and the drive itself. Don't waste your money with SR performance, only lasted me 3 months

        Helpful (7)
      • November 15, 2015

        5 2000 GT - warewolf39 Installation Time: Full Day

        Great product!

        It's been about a week since I've installed these JandM lower control arms, so far great feeling of stability in the car. The only downside is with the poly bushings that were is an incremental amount of more noise going over the bumps, and RR crossings which was expected but deemed it would be good to mention in the review. Install was easy, (even though my help didn't show) I've done this swap before on other mustangs, but not my own. These arms are beefy, well constructed and even though they were my second choice over Maximum Motorsports, I'm really impressed with my choice.

        Helpful (4)

      Questions & Answers (4 answers)

      4 Top Rated Questions

      Going to remove the quad shocks for bigger rims. Would there be a performance difference if I only upgrade the lower control arms and not the upper ones?

      • Upgrading to The J&M Rear Lower Control Arms will provide adequate rigidity for removing the quad shocks, however for the best performance, both upper and lower control arms should be replaced.

      Helpful (0)

      I purchased upper and lower arms , look very good , should I consider installing grease zerks - or is the opinion of j m that a one time grease application will suffice for the many miles I will ask of this product.

      • I would recommend installing Grease zerks just in case you would ever need more grease in the bushings. The grease in them however will last a very long time.

      Helpful (0)

      Do you need to press these bushings? do you need to press these bushings using a hydraulic press?

      • No, only stock bushings with the metal shells need a press.

      Helpful (0)

      Do i reuse the factory bolts? if not what size do i buy?

      • With the installation of the J&M Rear Lower Control Arms (99-04 GT, V6, Mach 1) you will reuse the factory hardware.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      Hardware included:
      • (8) Cupped Polyurethane outer bushings
      • (4) Polyurethane inner balls
      • (4) Zinc-plated steel sleeves
      • Polyurethane grease

      Tech Specs

      Will It Fit My Mustang

      • Bullitt - 01
      • GT - 99, 00, 01, 02, 03, 04
      • Mach 1 - 03, 04
      • V6 - 99, 00, 01, 02, 03, 04

      Does not fit 1999-2004 SVT Cobra's with Independent Rear Suspension (IRS)

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