Differential Mount

What Is a Differential Mount?

The differential mount is one of the unsung heroes of your vehicle's driveline. Differential mounts serve as the structural and cushioning interface between the differential housing and the vehicle's subframe or chassis. By supporting the differential in place, a differential mount cushions the car from vibrations on the road and positions the component so that it works in harmony with other crucial driveline pieces, such as driveshafts, transmissions, and axles.

Vehicle drivelines transmit torque from the engine to the wheels, and the differential is conventionally equipped between the sideshafts of a front axle, a rear axle, or both. The differential allows wheels on one sideshaft to spin faster or slower than wheels on the other sideshaft, and also apportions driven torque flow between those sideshafts. Without a properly functioning mount keeping the differential secure, none of that precision torque distribution is possible.

Why Differential Mounts Matter

Differential mounts are essential for minimizing vibrations and maintaining the alignment of linkages and shafts. Over time, the mount material degrades and its ability to isolate the chassis from driveline forces diminishes. Once the rubber or polyurethane material on a differential mount begins to wear, it becomes less effective at holding the differential in place, and the differential can begin to move in relation to the inputs it receives from the driveline.

The symptoms of a failing mount are hard to ignore once they start. A worn mount often manifests as a shudder or shake when the vehicle is accelerating, but it can occur over such a long period of time that a driver gradually adjusts to the degraded ride quality. One of the most common manifestations of excessive differential movement is a "clunk" that is typically heard at the initial moment of acceleration, as well as when lifting off of the gas pedal to decelerate.

OEM Replacement vs. Performance Upgrades

Differential mounts are available in two broad camps: OEM-equivalent rubber mounts designed to restore the factory ride and handling balance, and performance or solid-bushing mounts made from stiffer polyurethane or aluminum that reduce differential movement for crisper throttle response and more precise driveline behavior. The right choice depends on your vehicle's use case — street comfort, track performance, or off-road duty.

When shopping, key considerations include material durometer (hardness), vehicle-specific fitment, and whether you want to maintain NVH (noise, vibration, and harshness) isolation or sacrifice some of it in exchange for improved responsiveness and durability under high-load driving.

Top Differential Mount Brands

The differential mount category is supported by a focused group of manufacturers known for driveline expertise and fitment accuracy:

• Mopar Performance — The factory performance arm of Stellantis, Mopar Performance offers differential mounts engineered specifically for Chrysler, Dodge, Jeep, and Ram vehicles. Their parts meet or exceed OEM specifications, making them a natural first choice for owners who want a reliable, factory-correct fit.
• Cusco — A respected Japanese tuning brand with deep motorsport roots, Cusco produces performance differential mounts aimed at enthusiast drivers. Their parts are known for tighter tolerances and stiffer construction, reducing differential movement for sharper driveline response on spirited street and track applications.
• Super Pro — Super Pro specializes in polyurethane suspension and driveline components, and their differential mounts bring that same material expertise to the differential. Polyurethane construction delivers improved longevity over OEM rubber while maintaining acceptable NVH levels for daily-driven vehicles.
• Torque Solution — Torque Solution focuses on performance driveline components, and their differential mounts are popular among sport compact and turbocharged vehicle owners. Known for solid or solid-bushing mount designs, Torque Solution's products minimize differential deflection under high-torque conditions.