Energy Suspension GM transmission mount 3.1108G — direct-fit Hyper-Flex polyurethane, improved durability

Energy Suspension 3.1108G is a direct-fit GM transmission mount made from Hyper-Flex polyurethane to replace worn rubber mounts for longer-lasting drivetrain support.

This transmission mount from Energy Suspension is engineered as a professional-grade replacement for GM vehicles that originally used rubber mounts. Built in the United States with a durable Hyper-Flex polyurethane compound, the 3.1108G addresses common failure points of factory mounts—resistance to oils, road contaminants and permanent compression—while preserving proper alignment and engine-to-transmission connection. It’s designed for technicians, enthusiasts and daily drivers seeking a robust, long-lived mounting solution that installs like the original.

How does this mount improve durability compared with a stock rubber mount?

The Hyper-Flex polyurethane material resists the chemicals and environmental exposure that typically degrade rubber over time. Rather than absorbing fluids or softening, the compound retains shape under load and rebounds after flexing, which reduces the chance of sagging or permanent deformation.

• Polyurethane construction resists oil, coolant and road contaminants
• Engineered to minimize permanent compression and maintain ride height
• Longer functional life in the same mounting location versus degraded rubber

Will this mount fit my GM vehicle and is installation complicated?

The 3.1108G is a direct-fit replacement designed for the same mounting points used by the factory GM mount. Installation typically follows the vehicle’s OEM procedure; a basic set of mechanic’s tools and a safe way to support the transmission are recommended. Professional installation is suggested if you are unfamiliar with drivetrain work.

• Direct-fit to original GM mounting locations—no trimming required
• Fits like the original part for straightforward bolt-on replacement
• Compatible with standard service procedures and common hand tools

What performance or NVH (noise, vibration, harshness) differences should I expect?

Polyurethane mounts often provide firmer control of engine and transmission movement compared with softened or failing rubber mounts. That firmer response can improve shift feel and reduce excessive movement while still damping vibrations; the Hyper-Flex formulation is tuned to avoid a harsh, unrefined ride typical of hard aftermarket mounts.

• Tighter drivetrain control for improved shift consistency
• Reduced slop and movement under load without introducing harshness
• Balanced damping properties to maintain everyday comfort

Why choose Energy Suspension and what are the product’s manufacturing highlights?

Energy Suspension specializes in aftermarket polyurethane components engineered for demanding applications. This mount is made in the United States to professional standards and uses a Hyper-Flex compound designed for replacement duty where stock rubber fails prematurely.

• Manufactured in the United States to professional-grade specifications
• Hyper-Flex polyurethane resists environmental degradation common to rubber
• Produced by a brand recognized for drivetrain and suspension polymer components

Who is this for? The Energy Suspension 3.1108G GM transmission mount is intended for mechanics, restoration builders and drivers who want a durable, OEM-style replacement that withstands contaminants and resists permanent compression. If your GM vehicle shows sagging mounts, unusual drivetrain movement, or recurring mount failures due to oils or environmental exposure, this Hyper-Flex polyurethane replacement is a practical upgrade that keeps factory fitment and simplifies service.