Boxed lowers & Ultimate uppers—strong, adjustable, precision built.
$599.99
GPHP_361517-R
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
This kit includes one set of Boxed lower control arms and one set of on-car adjustable upper control arms, "Ultimate Arms". Both items are...
3058-850 - 1978-1988 GM G-Body, 1982-2003 S10/S15 Front Kit, Use w/ C/O A-Arms
$784.99
GPHP_3058-850
All
Coilover Adjustable Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
Viking's front coilover kit pairs perfectly with UMI's 3057 a-arm and provides awesome performance at a great price point. Road race and auto-x cars...
1978-1988 GM G-Body Rear Coilover Kit, Control Arm Relocation, 2”-3” Lowering
$1,069.99
GPHP_3048-150
All
Coilover Adjustable Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustability for your 1978-1988 GM G-Body. The upper mount reinforcement is...
UMI adjustable uppers improve handling, reduce wheel hop, and install easily.
$269.99
GPHP_3618-B
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
UMI’s adjustable rear upper control arms are a reliable addition to your street car, suitable for various driving conditions. The greaseable polyurethane bushings minimize...
1982-1992 GM F-Body, 1978-1988 GM G-Body Bump Steer Adjuster Kit, Heavy Duty
$169.99
GPHP_3060-1
All
Steering
Steering Bump Steer Assembly
Steering, Gear and Related Components
UMI Performance
UMI’s 3060-1 bump steer kit allows adjustment of the outer tie rod height which in turn can help reduce or eliminate toe change during...
3057-1 - 1978-1988 GM G-Body, 1982-2003 S10/S15 Front Lower A-arms, C/O Only
$799.99
GPHP_3057-1-R
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
UMI’s 3057-1 lower a-arms arms feature a relocated ball joint cup which offers 10 degrees caster when used with our P/N 3056 upper arm...
3051F - 1978-1988 GM G-Body Lowering Spring, Front, 2” Lowering
$169.99
GPHP_3051F
All
Coil Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
UMI boxed lower control arms with Roto-Joints improve traction and handling.
$369.99
GPHP_3626-B
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
UMI's boxed lower control arms utilize Roto-Joint technology for a bind-free performance and comfortable ride quality. The control arms are fabricated from 0.120” wall...
3050F - 1978-1988 GM G-Body Front 1", 1970-1981 F-Body 2-1/2" Lowering Spring
$169.99
GPHP_3050F
All
Coil Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...
1978-1988 GM G-Body Rear Coilover Kit, Control Arm Relocation, 2”-3” Lowering
$1,069.99
GPHP_3048-225
All
Coilover Adjustable Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustability for your 1978-1988 GM G-Body. The upper mount reinforcement is...
1978-1988 GM G-Body Rear Coilover Kit, Control Arm Relocation, Stock Height
$1,069.99
GPHP_3064-110
All
Coilover Adjustable Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustability for your 1978-1988 GM G-Body. The upper mount reinforcement is...
3059-1 - 1978-1988 GM G-Body, 1982-2003 S10/S15 Front End Kit, 650lb, Street
$2,259.99
GPHP_3059-1-B
All
Coilover Adjustable Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
3059-1 - 1978-1988 GM G-Body, 1982-2003 S10/S15 Front End Kit, 650lb, Street
UMI Roto-Joint uppers boost handling, cut wheel hop, and allow easy tuning.
$319.99
GPHP_3628-B
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
UMI’s Roto-Joint adjustable rear upper control arms are a reliable upgrade for your street or pro-touring car. These upper control arms are suitable for...
UMI polyurethane rear end bushings: stronger, better ride, USA-made.
$59.99
GPHP_3600-R
All
Bushings
Differential Mount Bushing
Driveline and Axles
UMI Performance
UMI offers high durometer polyurethane bushings to replace the factory rubber rear end housing bushings. These bushings are designed to improve ride quality and...
305756-3 - 1978-1988 GM G-Body, 1982-2003 S10/S15 Upper & Lower A-arm, C/O Only
$1,529.99
GPHP_305756-3-B
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
Tremendous front grip and a host of features can be yours with UMI’s 305756-3 kit. This a-arm kit enables 10 degrees caster while maintaining...
3056-2 - 1978-1988 G-Body, S10 Tubular Front Upper A-Arms, Adjustable
$699.99
GPHP_3056-2-B
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
UMI’s 3056 adjustable upper a-arms are designed to excel in Pro-Touring, road race, auto-x and hot street corner carving. The race quality rod ends...
3052-300 - 1978-1988 GM G-Body 3/4” Solid Rear Sway Bar, Auto-x/Road Race
$499.99
GPHP_3052-300-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body ¾” solid rear sway bar is designed specifically to excel when used in autocross or road racing applications. The G-Body chassis when...
3052-300 - 1978-1988 GM G-Body 3/4” Solid Rear Sway Bar, Auto-x/Road Race
$499.99
GPHP_3052-300-B
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body ¾” solid rear sway bar is designed specifically to excel when used in autocross or road racing applications. The G-Body chassis when...
3052-275 - 1978-1988 GM G-Body 3/4” Solid Rear Sway Bar, Auto-x/Road Race
$499.99
GPHP_3052-275-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body ¾” solid rear sway bar is designed specifically to excel when used in autocross or road racing applications. The G-Body chassis when...
3045-325 - 1978-1988 GM G-Body 1-3/8” Tubular Rear Drag Sway Bar, Bolt-on
$529.99
GPHP_3045-325-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body Anti-Roll bar is designed to help your hot rod leave the line flat and straight. The bars are manufactured from light weight...
1978-1988 GM G-Body Rear Coilover Kit, Control Arm Relocation, 2”-3” Lowering
$1,069.99
GPHP_3048-110
All
Coilover Adjustable Spring Lowering Kit
Suspension
Suspension, Springs and Related Components
UMI Performance
UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustability for your 1978-1988 GM G-Body. The upper mount reinforcement is...
3044-325 - 1978-1988 GM G-Body 1” Tubular Rear Sway Bar, Chassis Mounted
$519.99
GPHP_3044-325-B
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body Pro-Tour style bar is a true multi purpose high performance rear sway bar. The chassis and differential housing mounts reduce bind normally...
3038 - 1978-1988 G-Body Lower Control Arms- Poly/Roto-Joint Combination
$329.99
GPHP_3038-B
All
Suspension
Suspension Components
Suspension Trailing Arm
Suspension, Springs and Related Components
UMI Performance
UMI's tubular lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The Roto-Joint design is a...
3036 - 1978-1988 G-Body Non Adjustable Upper Control Arms- Roto-Joint
$229.99
GPHP_3036-B
All
Suspension
Suspension Components
Suspension Trailing Arm
Suspension, Springs and Related Components
UMI Performance
UMI's tubular upper control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The Roto-Joint design is a...
UMI 1.250" solid front sway bar improves handling and reduces body roll.
$259.99
GPHP_3035-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
The UMI Performance 1.250" solid front sway bar is designed to enhance your vehicle's handling by reducing body roll, improving cornering capabilities, and minimizing...
3045-300 - 1978-1988 GM G-Body 1-3/8” Tubular Rear Drag Sway Bar, Bolt-on
$529.99
GPHP_3045-300-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body Anti-Roll bar is designed to help your hot rod leave the line flat and straight. The bars are manufactured from light weight...
303133 - 1978-1988 G-Body, S10 Tubular Front Upper & Lower A-Arms, Poly
$1,329.99
GPHP_303133-R
A-Frame Control Arm
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
Improve handling and fulfill your truck’s built-in performance potential by installing our P/N 383133-1 tubular upper and lower a-arms. UMI’s P/N 383133-1 upper and...
3044-300 - 1978-1988 GM G-Body 1” Tubular Rear Sway Bar, Chassis Mounted
$519.99
GPHP_3044-300-B
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body Pro-Tour style bar is a true multi purpose high performance rear sway bar. The chassis and differential housing mounts reduce bind normally...
3042 - 1978-1988 G-Body Boxed Lower Control Arms- w/ Dual Roto-Joints
$399.99
GPHP_3042-R
All
Suspension
Suspension Components
Suspension Trailing Arm
Suspension, Springs and Related Components
UMI Performance
UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are...
3037 - 1973-1977 GM A-Body, 1978-1988 G-Body Rear Upper Control Arms, Adjustable
$299.99
GPHP_3037-B
All
Suspension
Suspension Components
Suspension Trailing Arm
Suspension, Springs and Related Components
UMI Performance
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...
3036 - 1978-1988 G-Body Non Adjustable Upper Control Arms- Roto-Joint
$229.99
GPHP_3036-R
All
Suspension
Suspension Components
Suspension Trailing Arm
Suspension, Springs and Related Components
UMI Performance
UMI's tubular upper control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The Roto-Joint design is a...
3034 - 1978-1988 GM G-Body 1" Solid Rear Sway Bar
$169.99
GPHP_3034-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
Our beefy 1" solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension....
3044-300 - 1978-1988 GM G-Body 1” Tubular Rear Sway Bar, Chassis Mounted
$519.99
GPHP_3044-300-R
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body Pro-Tour style bar is a true multi purpose high performance rear sway bar. The chassis and differential housing mounts reduce bind normally...
3045-275 - 1978-1988 GM G-Body 1-3/8” Tubular Rear Drag Sway Bar, Bolt-on
$529.99
GPHP_3045-275-B
All
Suspension
Suspension Components
Suspension Stabilizer Bar
Suspension, Springs and Related Components
UMI Performance
UMI's G-Body Anti-Roll bar is designed to help your hot rod leave the line flat and straight. The bars are manufactured from light weight...
UMI 3033-2 arms add camber & caster for sharper feel and more grip.
$679.99
GPHP_3033-1-B
A-Frame Control Arm
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
Improve the street and track performance of your GM truck and achieve that precise Pro-Touring feel by combining our popular P/N 3033 upper a-arms...
303133 - 1978-1988 G-Body, S10 Tubular Front Upper & Lower A-Arms, Poly
$1,329.99
GPHP_303133-B
A-Frame Control Arm
All
Suspension
Suspension Components
Suspension Control Arm
Suspension, Springs and Related Components
UMI Performance
Improve handling and fulfill your truck’s built-in performance potential by installing our P/N 383133-1 tubular upper and lower a-arms. UMI’s P/N 383133-1 upper and...