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  • UMI Performance

    UMI Performance 67-70 GM B-Body Tubular Upper Control/Trailing Arm - 3661-R

    $89.99

    Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting...

  • UMI Performance

    UMI Performance 67-70 GM B-Body Upper Control Arm Mount - 3663-B

    $79.99

    This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is...

  • UMI Performance

    UMI Performance 67-70 GM B-Body Upper Control Arm Mount - 3663-R

    $79.99

    This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is...

  • UMI Performance

    UMI Performance 67-72 GM A-Body 1in Lowering Spring Set - 4050

    $319.99

    A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the...

  • UMI Performance

    UMI Performance 67-72 GM A-Body Factory Height Springs Rear - 4049R

    $189.99

    A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the ...

  • UMI Performance

    UMI Performance 67-72 GM A-Body Spring Kit 2in Lowering - 4051

    $319.99

    A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the...

  • UMI Performance

    UMI Performance 67-72 GM A-Body Spring Kit Factory Height - 4049

    $349.99

    A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the...

  • UMI Performance

    UMI Performance 68-70 GM A-Body Corner Max Street Handling Race Package - Black - 406402-B

    $3,109.99

    UMI’s Corner Max front end kits are a comprehensive system with our best corner carving parts under one easy to find part number. The Corner Max system combines geometry corrected a-arms with tall...

  • UMI Performance

    UMI Performance 68-70 GM A-Body Corner Max Street Handling Race Package - Red - 406402-R

    $3,109.99

    UMI’s Corner Max front end kits are a comprehensive system with our best corner carving parts under one easy to find part number. The Corner Max system combines geometry corrected a-arms with tall...

  • UMI Performance

    UMI Performance 68-72 A-Body Adjustable Upper Control Arms- w/ Roto-Joint - 4037-B

    $299.99

    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...

  • UMI Performance

    UMI Performance 68-72 A-Body Adjustable Upper Control Arms- w/ Roto-Joint - 4037-R

    $299.99

    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...

  • UMI Performance

    UMI Performance 68-72 A-Body Non Adjustable Upper Control Arms- w/ Roto-Joint - 4036-B

    $229.99

    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...

  • UMI Performance

    UMI Performance 68-72 A-Body Non Adjustable Upper Control Arms- w/ Roto-Joint - 4036-R

    $229.99

    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...

  • UMI Performance

    UMI Performance 68-72 GM A-Body 70-74 GM F-Body Front Frame Brace - 2654-B

    $159.99

    With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace improves chassis rigidity, reduces steering gear...

  • UMI Performance

    UMI Performance 68-72 GM A-Body 70-74 GM F-Body Front Frame Brace - 2654-R

    $159.99

    With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace improves chassis rigidity, reduces steering gear...

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