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

Energy Suspension 3.1108G is a direct-fit polyurethane transmission mount engineered to replace worn GM original mounts and restore stable drivetrain alignment without the drawbacks of aging rubber.

When a factory transmission mount starts to sag, crack or allow excessive drivetrain movement, the result can be poor shift feel, vibration transfer to the cabin, and premature wear on related components. The Energy Suspension 3.1108G GM Transmission Mount uses the brand’s Hyper-Flex polyurethane compound to resist oil, road salts, heat and ozone better than stock rubber, extending service life while keeping the transmission properly located under load.

How does this mount improve driving feel and gearbox behavior?

Replacing a tired rubber mount with Energy Suspension’s polyurethane unit reduces unwanted engine and transmission movement. That steadier positioning can sharpen shift response and limit clunks during acceleration or gear changes without changing vehicle geometry.

• Reduces lateral and longitudinal drivetrain movement for crisper shifts
• Minimizes cabin vibration transmitted from the transmission
• Maintains correct transmission angle under load, protecting linkages

What makes the Hyper-Flex polyurethane different from the original rubber mount?

Hyper-Flex polyurethane is formulated to resist common degrading factors that quickly break down rubber mounts. It resists compression set, chemical exposure and temperature cycling, so it retains shape and isolation properties longer in real-world conditions.

• Engineered to resist oil, coolant and road contaminants
• Designed to avoid permanent compression and sagging over time
• Built for repeated load cycles without rapid deterioration

Is installation straightforward and what should I expect during fitment?

The 3.1108G is made as a direct replacement for compatible GM applications, matching factory bolt patterns and dimensions to simplify installation. Typical replacement requires lifting the vehicle and supporting the transmission briefly while the old mount is removed and the new mount torqued to manufacturer specifications.

• Direct-fit design aligns with GM factory mounting points
• Requires basic hand tools and safe vehicle support (jack stands or lift)
• Torque to spec and inspect surrounding hardware for wear while installed

How durable is this mount and what maintenance does it need?

Made in the United States and built with premium Hyper-Flex polyurethane, the 3.1108G is intended for longer service life than OE rubber mounts. It doesn’t need regular replacement but should be inspected during routine service for cracked brackets, corroded hardware, or unusual movement.

• Manufactured in the U.S. with quality control standards
• Low-maintenance: visual inspection recommended during service intervals
• Resists common contaminants that accelerate rubber failure

Who is this for: Drivers of compatible GM vehicles who want a long-lasting, performance-minded replacement for a failing transmission mount. It’s suitable for daily drivers seeking improved shift feel and reduced cabin vibration, enthusiasts wanting a firmer drivetrain connection, and technicians looking for a reliable, made-in-USA replacement component. Choose the Energy Suspension 3.1108G when you want a direct-fit solution that resists contaminants and avoids the compression sag common to older rubber mounts.