What is a trunnion bushing and why does it wear out?

The trunnion bushing is part of the front suspension, connecting the control arm to the chassis. It allows for controlled movement. Over time, the rubber or original material can degrade, crack, or compress, leading to excessive play and poor handling.

What's the main benefit of using polyurethane bushings over rubber?

Polyurethane is a denser material than rubber, which means it deflects less under load. This results in a more direct feel from the suspension and steering, helping to reduce slop and improve responsiveness.

Does this kit include everything needed to replace the lower outer front trunnion bushings?

This kit contains the SuperPro lower outer front trunnion bushings. You may need additional tools and supplies for installation, such as grease and basic hand tools, depending on the condition of your existing components.

1965-1976 Triumph TR4A TR6 Front Trunnion Bushing Kit

Name: SuperPro 1965 Triumph TR4A Base Lower Outer Front Trunnion Bushing Kit
Brand: Superpro
Price: 98.99 USD
Availability: InStock

SuperPro 1965 Triumph TR4A Base Lower Outer Front Trunnion Bushing Kit

$98.99

Only 1 left in stock

Fits 1965-1976 Triumph TR4A TR6. SuperPro lower outer front trunnion bushing kit for improved suspension response.

Key Features

Fits 1965-1976 Triumph TR4A and 1968-1976 Triumph TR6.
Replaces the lower outer front trunnion bushings.
Made from durable polyurethane for improved suspension response.
Designed to reduce slop and improve steering feel.
Helps prevent irregular and excessive tire wear.
Maintains a good balance of road feel and cabin comfort.

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Fits these vehicles

Triumph TR4A 1965-1968
Triumph TR6 1968-1976

Product Details

When you're rebuilding the front suspension on your Triumph TR4A or TR6, replacing the lower outer front trunnion bushings is a key step. These bushings connect the control arm to the chassis, and when they wear out, you'll notice a sloppy feel in the steering, uneven tire wear, and a general lack of responsiveness from your front end. SuperPro has developed a well-built polyurethane bushing kit to get your classic Triumph handling like it should.

SuperPro has been making suspension components in Australia for nearly 50 years, and they've learned a thing or two about building parts that last, especially in tough conditions. This kit uses their durable polyurethane material, which is designed to give you a more direct connection to the road without sacrificing too much comfort. You'll get improved steering feel and better tire wear, all while keeping road noise and vibrations from becoming excessive inside the cabin. It's a solid option for bringing your TR4A or TR6's suspension back to life.