PFA Suspension Oversize Lower Ball Joint Brass Bearing Seating Cup Various Classic Aston Martin Models

Aston Martin Oversize (+0.020″) Suspension Lower Ball Joint Brass Bearing Cup

Restore tight, responsive steering and rescue worn suspension housings on your classic grand tourer using the PFA Oversize (+0.020″) Lower Ball Joint Brass Bearing Cup. We engineer this specialized component 0.020 inches oversize on the outer diameter, providing an ideal engineering solution for swivel assemblies and housings that have suffered from wear, fretting, or enlargement over decades of service.

Product Overview

Front suspension swivel housings on classic DB and V8 models endure heavy multi-directional loads. Over time, the housing bores can become worn or slightly enlarged. Rather than discarding rare or expensive original swivel assemblies, boring the housing out to 2.020 inches to receive our +0.020″ oversize brass bearing cup cleans up the worn bore, restores correct interference fitment, and makes your original components fully serviceable again.

• Vehicle Compatibility: Suitable for classic Aston Martin models from the DB4 era through to the AMV8 era utilizing traditional wishbone and swivel assemblies:

  • Aston Martin DB4, DB5, DB6 & DB6 Mk2

  • Aston Martin DBS6 & DBS V8

  • Classic Aston Martin AM V8

• Engineering Purpose: Specifically oversized by 0.020″ on the outer diameter; requires professional machining to bore the original lower arm housing out to 2.020″ to accept the enlarged cup.

• Quantity: Priced and sold individually.

• Enhanced Material: Precision-machined from the same high-grade Columbia Metals alloy as our standard units, ensuring superior machinability, wear resistance, and long-term durability under heavy cornering loads.

Technical Specifications

Parts Book Reference Guide

You can easily cross-reference the standard lower ball joint assembly locations in your official Aston Martin parts catalogues and workshop manuals:

Why Choose Our Oversize Brass Bearing Cups?

A loose bearing cup in a worn swivel housing leads to steering play, vague handling, and accelerated mechanical fatigue. By having your original lower arm housing professionally bored out to 2.020″ and installing our +0.020″ oversize cup, you eliminate housing slop and achieve a secure, interference-fit press installation. Consequently, your classic grand tourer maintains crisp, direct steering feedback while preserving original suspension components.

Need assistance with your front suspension rebuild or machining specifications? We specialize in supplying authentic and precision-engineered components for classic Aston Martin models. If you need help verifying your housing dimensions or planning your restoration, please contact our team for expert guidance.