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QA1 Adjustable Rear Upper Control Arms (79-04 All; Excludes 99-04 Cobra)

4 Reviews
Our Price

$224.97

(pair)
  • Item #50608
  • MPN# 5255

  • Market Price $258.99
  • You Save 13% ($34.02)
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Product Videos Customer Photos
Features
  • Improves traction
  • Eliminates wheel hop
  • Tubular steel construction
  • On car adjustable
  • Direct bolt-on upgrade
  • Sold as a pair
  • Fits 1979-2004 Mustangs, excludes IRS Cobra
Description
Improves Traction. If you can't "hook up" you are going nowhere fast. That is why QA1 designed their Rear Upper Control Arms to be adjustable so you can dial in your Mustangs suspension to eliminate excessive wheel hop, improve traction, and decrease your 60ft. times.

Tubular Steel Construction. QA1 Rear Upper Control Arms are constructed from 1-1/4" diameter, 0.120" wall steel tubing for light weight and superior strength. Graphite impregnated polyurethane differential bushings are included to replace the soft stock OE rubber bushings.

On Car Adjustable. The QA1 Rear Upper Control Arms are designed to be adjusted without removing the arms from the car. Simply loosen the jam nuts and set the pinion angle as desired for improved traction and better handling.

Application. These QA1 Adjustable Rear Upper Control Arms are designed as a direct bolt-on upgrade for the 1979 to 2004 Mustangs with a solid rear axle, not intended for use on 1999-2004 SVT Cobra's with Independent Rear Suspension (IRS).

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

Won't fit? Add an exception

What's in the Box
  • (2) Control Arms
  • (2) Two-piece bushings
  • (2) Sleeves
  • (2) Bolts
  • (8) Washers
  • (2) Nuts
Installation Info
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
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

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

Most Helpful Reviews

4/5
qu1 adjustable rear upper control arms

QA1 sticker in box, but the arm says edlebrock? No big deal.... The old was a pain to remove, old bushings stuck in the mount. These arms being adjustable makes sense, but no direction in how to adjust ...

Read More
Helpful (3)

5/5
Be ready for the install..

I bought these because I have my 2002 GT lowered approximately 4 inches on Bilstein coil-overs in the front, and than H&R springs with Bilstein shocks in the rear with adjustable lower control arms, and ...

Read More
Helpful (2)

Read All 4 Reviews
Overall Rating 4.8 out of 5 stars

Videos

I’m Justin with AmericanMuscle.com, and this is our acceleration pack bolt on build up for all 99-04 Mustang GTs. The focus of this pack is of course acceleration, but in order to accelerate faster you View Full Transcript

Customer Photos (1) View All Photos

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3 Questions / 3 Answers

Ask a Question

are adjustable control arms better than fixed? If yes may you please explain why?

Blaise Year: 2002 Model: GT

  • Depends on what your mustang is used for, daily driver, fixed would be better in the end. If you take your car to the track once in a while you might see better numbers with these control arms.

    DAlm Year: 1995 Model: GT

    Good Answer (3)

Question Resolved

how will my car react if tighten all the way,loosen all the way, or neutral?

Blaise Year: 2002 Model: GT

  • Your car won't reach anyway really, from what i know these adjustable control arms are used for better launches. Like at a track for instance, when u launch your rear end sinks and your front end lifts, when that happens the angle of your driveshaft into your rearend changes. Most people try to set this up so when the front end raises they try to acheive basically a straight line from tranny to diff.

    Best Answer

    DAlm Year: 1995 Model: GT

    Good Answer (3)

Show 1 more answer Question Resolved

does this affect rear camber angle at all?

kiddo Year: 2004 Model: V6

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Customer Reviews (4) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Afternoon

  • Handling Improvement 4.75 4.8
  • Fit 4.5 4.5
  • Bang For Your Buck 4.25 4.3



  • 4/5

    Installation Time: Afternoon

    March 18, 2013

    qu1 adjustable rear upper control arms

    QA1 sticker in box, but the arm says edlebrock? No big deal.... The old was a pain to remove, old bushings stuck in the mount. These arms being adjustable makes sense, but no direction in how to adjust them, still getting noise (and i replaced lowers too). Seems non adjustable uca's would have worked easy, maybe easier! They have a grease fitting, good idea, look good, lightweight.. Ended up adjusting them about 5 times before pinion angle good and no noise.

    mustang04

    Year: 2004 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 PA

    Helpful (3) (0)

  • 5/5

    Installation Time: Weekend

    January 21, 2014

    Be ready for the install..

    I bought these because I have my 2002 GT lowered approximately 4 inches on Bilstein coil-overs in the front, and than H&R springs with Bilstein shocks in the rear with adjustable lower control arms, and was experiencing some drive line vibration since my angle was thrown off. Also my UCA bushings were making all kinds of racket because they were shot. I embarked on the job thinking it would be a quick in and out procedure. Not quite. The bushings in the axle were a nightmare to remove. I ended up having to take a 3/8's drill bit and having to drill out the bushings until they were nothing but powder on my garage floor, than having to clean out the inner part of their housings with a metal wire drill attachment. Once the bushings were out, the new ones slipped in fairly easy, and adjusting the drive line angle was a breeze. First test drive with the new ones on made the whole project worth it though. Completely transformed the way the car felt. No noise, much more sound feeling, and puts down the grip much more efficiently. These are completely worth the project, just be ready for a full day if not two if your bushings are as difficult as mine were.

    Jbird27

    Year: 2002 Model: GT Driving Style: Race 'Stangs I have owned: 3 Seattle, WA, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    July 23, 2013

    Adjustable is the way to go!

    I recommend getting these if you have a lowered stang and much more solid then stock uppers.

    Judd

    Year: 1997 Model: Cobra Driving Style: Street / Strip 'Stangs I have owned: 3 Cedarville, Lawrence Township, NJ 08311, USA

    Helpful (0) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 22, 2013

    Get these.

    Very easy to install and oncr the pinion angel is set hard alunches really straighten out!

    6gunsal

    Year: 2004 Model: Mach 1 Driving Style: Street / Strip 'Stangs I have owned: 1

    Helpful (0) (0)

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