Prothane 6-1603 Polyurethane Transmission Crossmember Bushing

The Prothane 6-1603 is a direct-fit polyurethane transmission crossmember bushing designed to replace worn, soft factory rubber bushings. Prothane's high-durometer polyurethane material resists compression, oil, and heat degradation — common failure points with OEM rubber — delivering a firmer, more precise connection between the transmission crossmember and chassis.

Unlike soft factory rubber bushings that allow excessive drivetrain movement under load, this polyurethane replacement helps reduce wheel hop, improves power transfer consistency, and restores proper drivetrain alignment. The result is improved chassis feedback and a more responsive driving feel, whether on the street or strip.

Key Features:

• High-durometer polyurethane construction for extended service life
• Resists oil, grease, ozone, and heat degradation
• Direct OEM replacement — no drilling or modification required
• Reduces drivetrain deflection and transmission movement under load
• Prothane red finish for easy identification during installation
• Includes grease fitting provisions for long-term serviceability

Manufactured by Prothane, a leading name in performance polyurethane suspension and drivetrain components, the 6-1603 is built to OEM dimensions for a hassle-free installation. Supplied with Prothane's supplied lubricant for proper installation and long service life.