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Transform your vehicle’s rear suspension responsiveness with the Prothane Black Rear Control Arm Axle Housing Bushing Kit (Part #6-309-BL). Soft, deteriorating factory rubber bushings allow severe rear-end instability, wheel hop, and squirm during aggressive launches and cornering. Crafted from high-density, hard-durometer black polyurethane without shells, this complete set eliminates sloppy axle deflection while preserving proper suspension geometry. Designed to withstand tough road conditions without cracking or breaking down like stock rubber, this upgrade delivers firm power delivery and enhanced cornering control for 1979-2003 Ford Mustang and Mercury Capri enthusiasts.
| • Resists compliance deformation to keep precise rear alignment settings locked. • Outperforms factory rubber mounts by resisting road oils and environmental rot. • Provides crisp power transfer to the pavement during hard launches and acceleration. • Compact component dimensions measuring 4.700 length by 3.000 height inches. • Identified by manufacturer part number 6-309-BL and UPC 636169148798 for accuracy. | • Ideal performance modification for street driving, drag racing, and track use. • Manufactured by Prothane Motion Control for superior rear suspension rigidity. • Fits 1979 to 2003 Ford Mustang and Mercury Capri models for a direct upgrade. • Made from hard durometer black polyurethane to stop axle hop and shudder. • Designed without metal shells for easy installation using stock outer sleeves. |
