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

Polyurethane mounts are generally more durable and resistant to degradation than rubber mounts. They offer a firmer connection between the engine/transmission and the chassis, which can reduce excessive movement and vibration.

Does this kit include all the necessary hardware for installation?

This kit includes the polyurethane mounts themselves. It's recommended to check the manufacturer's installation instructions or consult a service manual to confirm if any additional hardware, such as bolts or washers, is required for your specific vehicle.

How does replacing engine and transmission mounts affect the vehicle's performance?

Replacing worn mounts can significantly improve the driving experience by reducing engine and transmission movement, which minimizes vibration and clunking noises. This results in a more stable and connected feel when accelerating, braking, or shifting.

Prothane GM Motor & Trans Mount Kit 7-1901-BL

Name: Prothane GM Motor & Trans Mount Kit - Black
Brand: Prothane
Price: 148.43 USD
Availability: InStock

Prothane GM Motor & Trans Mount Kit - Black

$148.43

On Backorder — Expected to ship by May 3, 2026

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

Prothane GM Motor & Trans Mount Kit - Black. Replaces worn mounts for improved stability.

Key Features

Fits 1958-1982 Chevrolet and 1967-1972 GMC vehicles.
Includes mounts for both the engine and transmission.
Constructed from durable polyurethane for improved stability.
Black color finish.

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Will this fit your vehicle?

Product Details

Prothane is known for making well-built polyurethane suspension components, and this motor and transmission mount kit is no exception. If you're working on a classic GM vehicle and your original mounts are cracked or worn out, replacing them with this kit can make a big difference in how your car feels. Worn mounts can lead to excessive vibration, clunking noises, and even affect how your engine and transmission line up, so getting them sorted is key to a solid driving experience.

This kit includes the necessary mounts to replace both your engine and transmission mounts on a wide range of GM vehicles from the late 50s through the early 80s. The polyurethane material is more durable than rubber and offers a good balance between stiffness for stability and enough flex to keep things comfortable. You'll find this kit is a popular choice for Chevelles, Camaros, Impalas, and Corvettes from those eras, helping to keep everything securely in place.

When you're installing these, make sure to support your engine and transmission properly before removing the old mounts. It's a good idea to have a helper on hand for this job. Replacing these mounts is a straightforward way to restore a more connected feel to your vehicle's drivetrain.