Suspension

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...

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...

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 pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate...

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 pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate...

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...

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...

More about Roto-Joint Technology….. UMI's Roto-Joint, short for Rotational Joint, allows 28 degrees of total rotation and unrestricted movement throughout the vehicles suspension. The Roto-Joint is designed to work like a spherical rod end while maintaining streetable qualities of a softer bushing. The Roto-Joint...

More about Roto-Joint Technology….. UMI's Roto-Joint, short for Rotational Joint, allows 28 degrees of total rotation and unrestricted movement throughout the vehicles suspension. The Roto-Joint is designed to work like a spherical rod end while maintaining streetable qualities of a softer bushing. The Roto-Joint...

UMI Performance solid sway bars offer improved handling and reduced body roll for a more balanced suspension. These sway bars are designed to increase cornering capabilities and come with new end links and greaseable sway bar bushings. Made from 4140 CrMo steel, they are...

UMI Performance solid sway bars offer improved handling and reduced body roll for a more balanced suspension. These sway bars are designed to increase cornering capabilities and come with new end links and greaseable sway bar bushings. Made from 4140 CrMo steel, they are...

UMI’s 1-¼" (32mm) solid front sway bar is the go-to bar for today’s modern handling muscle car. This bar reduces body roll and helps plant the front tires without ruining ride quality and comfort. Each bar is manufactured from CNC bent 4140 CrMo which...

UMI’s 1-¼" (32mm) solid front sway bar is the go-to bar for today’s modern handling muscle car. This bar reduces body roll and helps plant the front tires without ruining ride quality and comfort. Each bar is manufactured from CNC bent 4140 CrMo which...

Our beefy 1" solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. This rear sway bar also works to keep your vehicle level and straight during those hard launches. Our sway bar...

Our beefy 1" solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. This rear sway bar also works to keep your vehicle level and straight during those hard launches. Our sway bar...

Improve handling and make your classic A-Body feel like a modern day muscle car by installing our P/N 4033 tubular upper a-arms. The relocated ball joint plate on these a-arms permits up to six degrees caster without excessive shimming. Expect improved steering feedback courtesy...

Improve handling and make your classic A-Body feel like a modern day muscle car by installing our P/N 4033 tubular upper a-arms. The relocated ball joint plate on these a-arms permits up to six degrees caster without excessive shimming. Expect improved steering feedback courtesy...

Improve handling and make your classic A-Body feel like a modern day muscle car by combining our popular P/N 4033 upper a-arms with ½" taller premium ball joints. P/N 4033-1 a-arms combine the benefit of additional caster with increased negative camber potential throughout the...

Improve handling and make your classic A-Body feel like a modern day muscle car by combining our popular P/N 4033 upper a-arms with ½" taller premium ball joints. P/N 4033-1 a-arms combine the benefit of additional caster with increased negative camber potential throughout the...

Lower a-arms are assembled with UMI manufactured greaseable & fluted CNC machined zero deflection Delrin bushings for ultimate smooth suspension actionThis Part Fits: Year Make Model Submodel 1965-1967 Buick Gran Sport Base 1970-1972 Buick GS Base 1968-1969 Buick GS 350 Base 1968-1969 Buick GS...

Lower a-arms are assembled with UMI manufactured greaseable & fluted CNC machined zero deflection Delrin bushings for ultimate smooth suspension actionThis Part Fits: Year Make Model Submodel 1965-1967 Buick Gran Sport Base 1970-1972 Buick GS Base 1968-1969 Buick GS 350 Base 1968-1969 Buick GS...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403233 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403233 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403233-1 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403233-1 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Tired of looking at hammered, crusty lower a-arms with cracked ball joint bosses? UMI has the solution with brand new modern tubular lower a-arms. UMI lower A-Arms are fabricated from DOM tubing with CNC machined tube ends for a precision fit. They are jig...

Tired of looking at hammered, crusty lower a-arms with cracked ball joint bosses? UMI has the solution with brand new modern tubular lower a-arms. UMI lower A-Arms are fabricated from DOM tubing with CNC machined tube ends for a precision fit. They are jig...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403133 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403133 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403133-1 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Performance. UMI's P/N 403133-1 upper and lower a-arm kit replaces the worn out, stock stamped a-arms with high-strength tubular construction...

Tired of looking at hammered, crusty lower a-arms with cracked ball joint bosses? UMI has the solution with brand new modern tubular lower a-arms. UMI lower A-Arms are fabricated from DOM tubing with CNC machined tube ends for a precision fit. They are jig...

Tired of looking at hammered, crusty lower a-arms with cracked ball joint bosses? UMI has the solution with brand new modern tubular lower a-arms. UMI lower A-Arms are fabricated from DOM tubing with CNC machined tube ends for a precision fit. They are jig...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #4019)This Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #4019)This Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #4017)This Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #4017)This Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1968-1972 Buick Skylark Base 1968-1972...

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 and QA1 Endura Series Teflon lined spherical rod ends. When you are looking for the...

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 and QA1 Endura Series Teflon lined spherical rod ends. When you are looking for the...

UMI Performance adjustable upper control arms are designed to optimize your vehicle's pinion angle for superior performance, precise handling, and increased traction. These control arms are made of high-quality materials, including CNC machined 0.250" steel mounting plates, 4140 chrome moly threaded tube adapters, and...

UMI Performance adjustable upper control arms are designed to optimize your vehicle's pinion angle for superior performance, precise handling, and increased traction. These control arms are made of high-quality materials, including CNC machined 0.250" steel mounting plates, 4140 chrome moly threaded tube adapters, and...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or corner carving. The greaseable polyurethane bushings minimize suspension deflection for a crisp handling setup, easy pinion angle tuning and less...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or corner carving. The greaseable polyurethane bushings minimize suspension deflection for a crisp handling setup, easy pinion angle tuning and less...

UMI Performance adjustable upper control arms are designed to optimize your vehicle's performance by allowing you to adjust the pinion angle. These control arms are made with high-quality materials, including CNC machined 0.250" steel mounting plates, 4140 chrome moly threaded tube adapters, and a...

UMI Performance adjustable upper control arms are designed to optimize your vehicle's performance by allowing you to adjust the pinion angle. These control arms are made with high-quality materials, including CNC machined 0.250" steel mounting plates, 4140 chrome moly threaded tube adapters, and a...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or corner carving. The greaseable polyurethane bushings minimize suspension deflection for a crisp handling setup, easy pinion angle tuning and less...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or corner carving. The greaseable polyurethane bushings minimize suspension deflection for a crisp handling setup, easy pinion angle tuning and less...

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel hop. The boxed lower control arms feature reinforced sway bar mounting holes...

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel hop. The boxed lower control arms feature reinforced sway bar mounting holes...

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel hop. The boxed lower control arms feature reinforced sway bar mounting holes...

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel hop. The boxed lower control arms feature reinforced sway bar mounting holes...