What is the main benefit of using polyurethane spring insulators over rubber?

Polyurethane is more resistant to degradation from heat, oil, and coolant than rubber. This means Superpro's insulators will last longer and maintain their performance characteristics better over time, leading to improved handling and a more consistent feel.

What are the key dimensions of these spring insulators?

The insulators have the following dimensions: A=94mm, B=67-85.5mm, C=7mm, D=5.5mm, and E=72mm. The 'B' dimension accounts for a range due to the tapered inner diameter.

Does this kit include everything needed to replace the rear spring insulators?

This kit contains the Superpro rear spring insulators designed for your specific Triumph model. It is a direct replacement for the original insulators, and typically no additional hardware is required for installation beyond standard shop tools.

1965-1976 Triumph TR4A TR6 Rear Spring Insulator

Name: SuperPro 1965 Triumph TR4A Base Rear Spring Insulator (Standard) Thickness)
Brand: Superpro
Price: 33.99 USD
Availability: InStock

SuperPro 1965 Triumph TR4A Base Rear Spring Insulator (Standard) Thickness)

$33.99

Only 2 left in stock

Fits 1965-1976 Triumph TR4A and TR6. Superpro rear spring insulator kit. Improves handling and performance.

Key Features

Fits 1965-1976 Triumph TR4A and TR6.
Replaces worn rear coil spring insulators.
Made from Superpro's proprietary engineering-grade polyurethane.
Unaffected by extreme temperatures, oils, water, or coolant.
Enhances vehicle handling and performance.
Dimensions: A=94mm, B=67-85.5mm, C=7mm, D=5.5mm, E=72mm.

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Fits these vehicles

Triumph TR4A 1965-1968
Triumph TR6 1968-1976

Product Details

If you're working on the rear suspension of your 1965-1976 Triumph TR4A or TR6, these rear spring insulators from Superpro are a solid option. They sit between your coil spring and the chassis to absorb road noise and vibrations, helping to keep your ride comfortable and your suspension components protected. These are a direct replacement for your original, worn-out rubber insulators.

Superpro makes these from a proprietary engineering-grade polyurethane formula, which is a step up from standard rubber. This material is known for being unaffected by extreme temperatures, oils, and coolant, and it won't degrade over time like old rubber can. This means you get a more consistent feel from your suspension, improved handling, and a longer service life compared to stock rubber bushings. The dimensions are A=94mm, B=67-85.5mm, C=7mm, D=5.5mm, and E=72mm, with a tapered ID.

This kit includes the necessary insulators to replace the worn parts on your Triumph. It's a straightforward replacement job that can make a noticeable difference in how your car feels on the road.