What is the main benefit of using polyurethane bushings over rubber?

Polyurethane is a denser material than rubber, which means it resists wear and tear from weather and use much better. This leads to a more solid connection for your rear end, improving handling and reducing the effects of aging rubber like cracking and hardening.

What exactly do these bushings replace on my rear end?

These bushings replace the two upper control arm rear end differential bushings. These are the bushings that attach to the rear end housing itself, often referred to as the 'ears' of the differential housing.

Does this kit include everything needed for installation?

Yes, the kit includes the two polyurethane bushings and two matching polyurethane washers. The washers are included to help keep the bushings properly seated and prevent them from walking side-to-side during operation.

UMI Performance Rear End Bushings 3000-R - 1965-1987 GM

Name: UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings
Brand: UMI Performance
Price: 54.39 USD
Availability: InStock

UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings

$54.39

Only 3 left in stock

UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings. Replaces worn rubber for improved handling.

Key Features

Fits 1965-1987 GM vehicles.
Replaces worn factory rubber rear end housing bushings.
High durometer polyurethane construction for improved durability and performance.
Includes two bushings and two polyurethane washers to prevent side-to-side movement.
Made in the USA.

⚠️ 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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Product Details

If you're working on the rear suspension of your classic GM car from 1965 to 1987, replacing the worn-out rubber bushings on the rear end housing is a common and important step. These factory rubber bushings can dry out, crack, and harden over time, which really affects how your car handles and rides. UMI Performance's polyurethane bushings are designed to replace those tired original parts, specifically targeting the two upper control arm rear differential bushings that attach to the rear end 'ears'.

These aren't just simple replacements; they're made from a high-durometer polyurethane that offers a more solid connection than the original rubber. This improved connection helps maintain better control over the rear axle, leading to a more responsive feel whether you're cruising on the street or pushing your vehicle on the track. The kit comes with the two necessary bushings along with polyurethane washers. These washers are a smart addition because they help keep the bushings properly positioned, preventing them from shifting side-to-side and ensuring consistent performance. They are made in the USA.