Chrysler Trans Mount

The Energy Suspension Chrysler transmission mount (5.1112G) is a direct replacement for factory rubber isolation components on Mopar vehicles from 1963 to 1973. As a transmission mount, this component isolates engine vibration and drivetrain noise from the vehicle chassis and cabin, while also supporting the weight of the transmission and reducing shock loads during acceleration and deceleration. This polyurethane upgrade is essential for builds where factory rubber has degraded, allowing excessive driveline movement that affects shift quality, handling feedback, and interior refinement.

Energy Suspension's Hyper-Flex polyurethane formulation outperforms original rubber by resisting heat, oil, and ozone breakdown that occurs over decades of use. The black polyurethane elastomer bonds to a cadmium-plated steel bracket system, creating a rigid yet compliant interface that maintains geometry under load while damping vibration more effectively than aged factory mounts. The engineered durometer of this material preserves smooth power delivery without introducing harshness, striking a balance between durability and drivability that restores proper transmission geometry alignment critical for manual and automatic shift performance on vintage Mopar platforms.

Restoration specialists, hot-rod builders, and owners of classic A-body, B-body, and C-body Chrysler vehicles benefit most from this mount when rebuilding suspensions or addressing transmission movement issues. Installation requires basic hand tools and approximately 30 minutes per mount, with bolt-on fitment designed for direct interchange with original mounting points—no welding or fabrication necessary. Verify your specific Mopar year and transmission type before purchase; this kit covers the widest range within the 1963–73 Chrysler lineup and delivers measurable improvements in shift feel, reduced cabin noise, and extended drivetrain component life.