Prothane 7-313 Rear Lower Control Arm Bushing Kit GM Full Size V8 1969-1970

The Prothane 7-313 is a rear lower C-arm bushing kit designed for full-size GM V8 vehicles from 1969–1970. Manufactured from Prothane's proprietary polyurethane compound, these bushings deliver a significant upgrade over the factory rubber units that wear, crack, and deform over time — causing sloppy handling and drifting alignment settings.

Polyurethane construction resists compression and deflection far better than OEM rubber, keeping the rear control arm firmly located under hard acceleration, cornering, and braking loads. The result is more predictable rear-end behavior, improved steering response, and alignment settings that stay where you set them.

Key Features:

• Manufactured from high-durometer polyurethane for superior compliance resistance
• Resists oils, solvents, and road chemicals that degrade rubber bushings
• Maintains proper rear axle geometry and alignment settings
• Designed as a direct replacement — no modification required
• Longer service life compared to OEM rubber bushings
• Includes all hardware needed for a complete installation

The Prothane 7-313 is part of Prothane's Total Kit line engineered specifically for classic GM full-size platforms, making it an ideal choice for restoration, performance street, or strip applications where rear suspension integrity is critical.