Vendor : UMI Performance
Product Type : Control Arms
Sku : UMI2039CM-R
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UMI's on car adjustable lower control arms utilize our Roto-Joint technology for a bind free performance, quiet ride quality, and also offer on car adjustment. The control arms can be adjusted longer or shorter moving the rear end back or forward to accommodate larger tires in the fender wells. Adjustable control arms are also recommended for aftermarket rear end installs to center the rear end and prevent tire rubbing. The installed Roto-Joint is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, improving performance and providing precision handling. The Chrome Moly version uses 1.250" x 0.095" 4130 Chrome Moly steel for increased strength and reduced weight. UMI's Roto-Joint allows 28 degrees of total rotation and unrestricted movement throughout the vehicle's suspension, preventing bind and improving traction. The Roto-Joint features a 4140 chrome moly, hard chrome plated spherical ball rotating in a delrin race for wear resistance and durability. The Roto-Joint is adjustable and rebuildable, ensuring longevity and performance. The spanner wrench is used for adjusting and disassembling Roto-Joints for maintenance and rebuilding.
Installation InstructionsThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988,1993-2002 | Chevrolet | Camaro | Base |
| 1982-1986 | Chevrolet | Camaro | Berlinetta |
| 1993 | Chevrolet | Camaro | Indianapolis 500 Pace Car |
| 1985-1990 | Chevrolet | Camaro | Iroc-Z |
| 1987 | Chevrolet | Camaro | LT |
| 1989-1992,1996-1997 | Chevrolet | Camaro | RS |
| 1992 | Chevrolet | Camaro | RS Heritage Edition |
| 1982-1987 | Chevrolet | Camaro | Sport |
| 1982-1987,1991-2002 | Chevrolet | Camaro | Z28 |
| 1992 | Chevrolet | Camaro | Z28 Heritage Edition |
| 1982 | Chevrolet | Camaro | Z28 Indianapolis 500 Pace Car |
| 1998-2002 | Chevrolet | Camaro | Z28 SS |
| 1982-2002 | Pontiac | Firebird | Base |
| 1989-2002 | Pontiac | Firebird | Formula |
| 1982-1986 | Pontiac | Firebird | S/E |
| 1982-2002 | Pontiac | Firebird | Trans Am |
| 1994 | Pontiac | Firebird | Trans Am GT |
| 1989-1992 | Pontiac | Firebird | Trans Am GTA |
| 1989 | Pontiac | Firebird | Trans Am GTA SE |
We will be temporarily closed from Monday 10th August until Friday 21st August 2026 while we relocate to our new premises and carry out our annual stock take. Our website will remain open and you are welcome to place orders during this period. However, new orders placed between 11th and 21st August will not be processed or dispatched until we reopen. Please note: Any orders currently open and already in our system will continue to be processed as normal and will not be affected by the temporary closure. If you have an urgent order or require something that cannot wait until we reopen, please contact us via our website chat or email. We will do our best to assist wherever possible. Normal service will resume on Saturday 22nd August 2026. We apologise for any inconvenience this may cause and greatly appreciate your patience and continued support while we complete our relocation and annual stock take. Thank you for your understanding and continued support.
