# UMI Performance 79-04 Ford Mustang Adjustable Upper Control Arms - Roto-Joints

UMI’s Roto-Joint adjustable rear upper control arms are a bulletproof addition to your street or pro-touring car. UMI’s Roto-Joint upper control arms are suitable for street, strip or corner carving. The premium UMI built spherical joint drastically minimizes suspension deflection for a crisp handling setup, easy pinion angle tuning and less wheel hop.  These on car adjustable upper control arms adjust easily while staying bolted to the car and are designed to handle virtually any application. The Roto-Joints combined with UMI’s in house designed and machined CrMo adjuster equal ultimate strength and performance. These heavy duty arms feature ¼” thick CNC laser cut mounting pads and a mix of TIG and MIG welding. These simple bolt in replacements install in 1-2 hours and are designed to work on all rear end housings. Launch harder and turn faster with UMI’s ultimate arms!

This Part Fits:

Year

Make

Model

Submodel

1979-1981,1994-2004

Ford

Mustang

Base

1981

Ford

Mustang

Cobra

1979-1981

Ford

Mustang

Ghia

1982-1983

Ford

Mustang

GL

1982-1983

Ford

Mustang

GLX

1982-2004

Ford

Mustang

GT

2001

Ford

Mustang

GT Bullitt

1984

Ford

Mustang

GT-350 20th Anniversary

1995

Ford

Mustang

GTS

1982-1984

Ford

Mustang

L

1984-1993

Ford

Mustang

LX

2003-2004

Ford

Mustang

Mach 1

1984-1986

Ford

Mustang

SVO

1993-1999,2001,2003-2004

Ford

Mustang

SVT Cobra

2003

Ford

Mustang

SVT Cobra 10th Anniversary

1993,1995,2000

Ford

Mustang

SVT Cobra R

1983

Ford

Mustang

Turbo GT

## Details

- **Price:** 377.0 CAD
- **Vendor:** UMI Performance
- **Type:** Control Arms

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 377.00 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/umi-performance-79-04-ford-mustang-adjustable-upper-control-arms-roto-joints)
> Updated: 2026-07-14