UMI Performance Rear Control Arm Bolt Upgrade Kit — Fits 78-88 GM G-Body

SKU: UMI3002

About UMI Performance UMI Performance engineers high-quality automotive parts and ...Read more

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About UMI Performance

UMI Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full UMI Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Upgrade Your Rear Suspension with UMI Performance Hardware

Don't let rusty, worn-out bolts compromise your aftermarket control arm installation. The UMI Performance Rear Control Arm Bolt Upgrade Kit provides all the necessary high-strength hardware to ensure a secure and lasting fit for your 1978-1988 GM G-Body vehicles.

Complete Hardware Solution

This comprehensive kit includes everything needed to install both upper and lower rear control arms. You'll receive:

  • (8) 12mm, Grade 10.9 High-Strength Steel Bolts: Equivalent to American Grade 8 strength for maximum durability.
  • (8) 12mm Nylon Lock Nuts: Prevents loosening under stress and vibration.
  • (16) Washers: Ensures proper load distribution and surface contact.

Built for Performance and Durability

Each component in this kit is bright zinc plated, offering excellent corrosion resistance and a clean, professional look. This upgrade is essential when installing performance control arms, ensuring your suspension components are mounted with the reliability they deserve.

Vehicle Fitment

This kit is designed for a wide range of 1978-1988 GM G-Body models, including Buick Regal, Chevrolet El Camino, Chevrolet Malibu, Chevrolet Monte Carlo, Oldsmobile Cutlass, and Pontiac Grand Prix/LeMans. Ensure your vehicle is listed for a perfect fit.

Invest in the quality and security of your suspension. Get the UMI Performance Rear Control Arm Bolt Upgrade Kit today at GGCRACING.

…and 6 additional fitments. Contact us to confirm yours.

About UMI Performance

UMI Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full UMI Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Upgrade Your Rear Suspension with UMI Performance Hardware

Don't let rusty, worn-out bolts compromise your aftermarket control arm installation. The UMI Performance Rear Control Arm Bolt Upgrade Kit provides all the necessary high-strength hardware to ensure a secure and lasting fit for your 1978-1988 GM G-Body vehicles.

Complete Hardware Solution

This comprehensive kit includes everything needed to install both upper and lower rear control arms. You'll receive:

  • (8) 12mm, Grade 10.9 High-Strength Steel Bolts: Equivalent to American Grade 8 strength for maximum durability.
  • (8) 12mm Nylon Lock Nuts: Prevents loosening under stress and vibration.
  • (16) Washers: Ensures proper load distribution and surface contact.

Built for Performance and Durability

Each component in this kit is bright zinc plated, offering excellent corrosion resistance and a clean, professional look. This upgrade is essential when installing performance control arms, ensuring your suspension components are mounted with the reliability they deserve.

Vehicle Fitment

This kit is designed for a wide range of 1978-1988 GM G-Body models, including Buick Regal, Chevrolet El Camino, Chevrolet Malibu, Chevrolet Monte Carlo, Oldsmobile Cutlass, and Pontiac Grand Prix/LeMans. Ensure your vehicle is listed for a perfect fit.

Invest in the quality and security of your suspension. Get the UMI Performance Rear Control Arm Bolt Upgrade Kit today at GGCRACING.

…and 6 additional fitments. Contact us to confirm yours.

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