Transmission Crossmember Mount Bushing

The Transmission Crossmember Mount Bushing from Energy Suspension is a precision-engineered replacement component designed for enthusiasts and mechanics restoring or upgrading classic Nissan Z-series vehicles. This polyurethane and steel hybrid bushing assembly eliminates the compliance and play inherent in original rubber mounts, delivering a direct mechanical connection between the transmission and frame crossmember. Built for 1970–1978 Nissan 240Z, 260Z, and 280Z platforms, this mount bushing upgrade is essential for drivers seeking improved shift feel, reduced driveline vibration, and enhanced chassis rigidity during spirited driving or competition use.

Energy Suspension's Hyper-Flex polyurethane compound bonds securely to the cadmium-plated steel core, creating a bushing that resists heat, oil, and UV degradation far longer than factory rubber. Polyurethane bushings maintain consistent compliance across temperature swings—critical in high-output or turbocharged applications where stock mounts break down rapidly. The 4.1 x 3 x 5.3-inch envelope ensures OEM-fitment compatibility without fabrication, while the low 0.45-pound weight adds negligible unsprung mass. Unlike solid steel inserts that transmit excessive vibration into the cabin, this bushing architecture preserves a degree of isolation while eliminating slop that allows the transmission to rock excessively under acceleration or braking.

Mechanics and restoration shops specify this transmission crossmember mount bushing kit when rebuilding classic Z-car drivetrains or converting to modern powertrains with higher torque outputs. Installation requires no drilling or permanent modification—the bushing simply replaces the original rubber component using existing fastener points. This product is ideal for owners who want responsive shift quality without the harshness of full-solid aluminum, making it the standard choice for both street restorations and vintage track cars where durability and performance go hand in hand.