Prothane 6-1209 Polyurethane Radius Arm Bushing Kit Red or Black

The Prothane 6-1209 is a polyurethane radius arm (strut arm) bushing kit designed as a direct-fit replacement for worn factory rubber bushings. Radius arms connect the control arm to the chassis, and their bushings are critical to limiting unwanted forward and rearward tire movement during acceleration and braking — keeping your suspension geometry stable and your steering predictable.

Factory rubber bushings are prone to cracking, rotting, and deteriorating over time when exposed to road contaminants, heat cycles, and physical stress. Prothane's polyurethane compound resists these forces far better, maintaining its shape and performance over the long term. Symptoms of worn radius arm bushings include steering wander, handling instability during acceleration or deceleration, and excessive chassis looseness.

Key Features:

• Manufactured from high-durometer polyurethane for superior longevity over OEM rubber
• Resists petroleum-based fluids, road grime, and physical wear
• Available in red or black — both colors share the same durometer and performance characteristics
• Black compound includes graphite to help minimize bushing squeak
• Includes pre-lube for proper installation
• Direct factory replacement fitment — no modifications required
• Made in the USA
• Backed by Prothane's Lifetime Warranty against defects in materials and workmanship

This kit is the correct radius arm bushing solution for 1980–1992 Ford F-Series and Bronco applications. Restoring these bushings will improve chassis feedback, tighten up suspension response, and eliminate the slop that develops in worn OEM rubber components.