What does a coil spring isolator do?

A coil spring isolator sits between the top of the coil spring and the vehicle's chassis. It acts as a cushion to absorb vibrations and reduce noise that would otherwise transfer from the spring to the car body, leading to a quieter ride.

How many isolators are included in this part?

This part number is for a single (1) rear upper coil spring isolator. If your vehicle requires two isolators for the rear axle, you will need to purchase two of these units.

What is the benefit of using polyurethane over rubber isolators?

Polyurethane is generally more resistant to degradation from road chemicals, UV exposure, and physical stress compared to rubber. This means Prothane's polyurethane isolators tend to last longer and maintain their cushioning properties more effectively over time.

Prothane Rear Upper Coil Spring Isolator 7-1706-BL

Name: Prothane 65-95 GM Rear Upper Coil Spring Isolator - Black
Brand: Prothane
Price: 7.09 USD
Availability: InStock

Prothane 65-95 GM Rear Upper Coil Spring Isolator - Black

$7.09

Only 3 left in stock

Prothane 65-95 GM Rear Upper Coil Spring Isolator - Black. This isolator helps reduce noise and vibration between the coil spring and the chassis.

Key Features

Fits 1965-1995 GM rear upper coil spring applications.
Made from durable black polyurethane material.
Helps reduce noise and vibration from the coil spring.
Designed to cushion the spring against the chassis.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

When you're working on the rear suspension of your classic GM vehicle, this Prothane rear upper coil spring isolator is what you get. It's a single black isolator designed to sit between the top of your rear coil spring and the vehicle's chassis. Its main job is to cushion the spring, helping to quiet down road noise and absorb some of the vibrations that would otherwise make their way into the cabin.

This isolator is made from Prothane's durable polyurethane material, which is known for its resilience and ability to withstand the stresses of suspension duty. Unlike the original rubber parts that can degrade and crack over time, this polyurethane piece offers a more long-lasting solution. It's a straightforward replacement part that can make a noticeable difference in ride comfort by taking out some of that harshness and squeaking that can develop as older isolators wear out. It fits a wide range of GM rear-wheel-drive cars and trucks from the mid-60s through the mid-90s, including models like the Chevrolet Caprice, Buick Regal, and Oldsmobile 442.