Prothane 7-317 Rear Control Arm Polyurethane Bushing Kit

The Prothane 7-317 is a rear control arm polyurethane bushing kit designed as a direct, performance-grade replacement for worn factory rubber bushings on the Pontiac GTO. Soft OEM rubber bushings degrade over time, allowing excessive control arm movement that throws off alignment settings and introduces vague, imprecise handling. Prothane's polyurethane formulation restores and exceeds original suspension geometry compliance.

Key Features:

• Premium polyurethane construction — significantly firmer than factory rubber for improved compliance resistance and reduced control arm flex
• Precision fit — engineered using SolidWorks 3D CAD design to ensure exact OEM dimensions and proper seating
• Maintains alignment settings — reduces bushing deflection that causes caster and camber drift during acceleration and braking
• Available in red or black — both colors share identical durometer hardness and performance characteristics; black variant includes graphite additive to further resist squeaking
• Includes Prothane Super Grease — supplied lubricant is required at installation to ensure quiet, long-lasting operation
• USA manufactured — produced at Prothane's domestic facility for quality-controlled production
• Lifetime warranty — backed by Prothane's lifetime guarantee against defects in materials and workmanship for the original purchaser

Replacing degraded control arm bushings with the Prothane 7-317 kit restores precise rear suspension geometry, improves steering response, and enhances overall handling confidence. Be sure to thoroughly lubricate each bushing with the included Super Grease during installation to prevent noise and maximize service life.