UMI Performance

Trailing arm mount braces are designed to reinforce the rear upper and lower front control arm mounts on your 1978-1988 G-Body vehicle. The more power your ride makes the better chance of bending or...

Trailing arm mount braces are designed to reinforce the rear upper and lower front control arm mounts on your 1978-1988 G-Body vehicle. The more power your ride makes the better chance of bending or...

Some competitors may consider these "Race Only" control arms while we consider them Race Ready. Our double adjustable lower control arms feature TIG welded fabrication, reinforced sway bar holes...

Some competitors may consider these "Race Only" control arms while we consider them Race Ready. Our double adjustable lower control arms feature TIG welded fabrication, reinforced sway bar holes...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #3027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #3017)

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #3027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #3017)

UMI Performance 78-88 GM G-Body Engine Side Solid Engine Mounts

UMI Performance 78-88 GM G-Body Front 1in 70-81 F-Body 2-1/2in Lowering Spring

Note: Not currently approved for Grand National platform with intercooler. Occasional grinding may be required due to GM G-Body product tolerances. UMI used five test cars for fitment in a variety...

Note: Not currently approved for Grand National platform with intercooler. Occasional grinding may be required due to GM G-Body product tolerances. UMI used five test cars for fitment in a variety...

Spring Heights: Springs are intended for small block engine. Lightweight LS engines may require trimming and an additional 1/4" front end drop may occur with a full weight big block. When choosing...

Spring Heights: Springs are intended for small block engine. Lightweight LS engines may require trimming and an additional 1/4" front end drop may occur with a full weight big block. When choosing...

#S41030 – Front and rear monotube shocks featuring medium compression and medium/high rebound for comfort combined with performance.

#S41030 – Front and rear monotube shocks featuring medium compression and medium/high rebound for comfort combined with performance.

Springs: Springs intended for small block engine. Lightweight LS may require trimming and an additional 1/4" front end drop may occur with a full weight big block.