What is the difference between a 3-link and a 4-link rear suspension setup?

A 3-link suspension typically uses one upper control arm on each side of the rear axle to locate it, while a 4-link setup uses two upper control arms on each side. This mount is designed to work with either setup, but it's important to know which your car originally came with.

Does this mount come with all the necessary hardware?

Yes, this UMI Performance upper control arm mount includes new Grade 8 hardware needed for installation. This helps ensure a solid and secure attachment to your vehicle's chassis.

How many of these mounts do I need for my vehicle?

This part is sold individually. Most six-cylinder and small-block vehicles came with a 3-link rear suspension, while big-block vehicles often used a 4-link setup. You'll need to check your specific vehicle to determine if you need one or two of these mounts.

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

Specifications

Brand: UMI Performance
Part #: 3663-B
UPC: 3663-B

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

Name: UMI Performance 67-70 GM B-Body Upper Control Arm Mount
Brand: UMI Performance
Price: 87.03 USD
Availability: InStock

$87.03

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1967-1970 Chevrolet Bel Air. UMI Performance upper control arm mount is a direct replacement for rusted factory parts or for converting to a 4-link setup.

Key Features

Fits 1967-1970 Chevrolet Bel Air, Biscayne, Caprice, and Impala.
Replaces the stock rear upper control arm mount on GM B-body vehicles.
CNC machined from 0.188-inch thick steel plate for a strong build.
Precision bent to fit the chassis contours.
Available in a bright red or gloss black powder coat finish.
Includes Grade 8 hardware for installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're working on a 1967-1970 Chevrolet Bel Air, Biscayne, Caprice, or Impala and need to replace a rusted-out rear upper control arm mount, this bracket from UMI Performance is a solid option. It's designed to bolt right in place of the original, making it a straightforward fix for a common problem on these classic GM B-bodies.

This mount is CNC machined from 0.188-inch thick steel plate, so it's well-built to handle the stresses of the rear suspension. It's precision bent to match the factory contours and comes finished in your choice of bright red or gloss black powder coat to resist corrosion. UMI includes the necessary Grade 8 hardware to get it installed, which is a nice touch that saves you a trip to the parts store. This bracket is also a great piece to use if you're upgrading to a 4-link rear suspension setup on a car that originally came with a 3-link system.

Keep in mind that this part is sold individually. Most six-cylinder and small-block cars came with a 3-link rear suspension, meaning they might have one upper control arm mount on each side, while big-block cars with a 4-link setup might have two upper control arms per side. It's a good idea to check your specific vehicle's setup to see how many of these mounts you'll need before ordering.