Engine and Transmission Mountings

The engine and transmission mounts hold and support the powertrain while isolating the vibrations produced by the powertrain from the chassis. On rear-wheel-drive (RWD) cars and trucks, there is usually a pair of motor mounts on each side of the engine to support the engine, and a single mount under the back of the transmission. The rear mount may be part of a bolt-in cross member support. On front-wheel drive (FWD) cars and mini-vans with transverse mounted engines, there are left and right engine/transmission mounts, and a third mount above or below to triangulate support.
Upper engine mounts are often called “struts” because they prevent the engine from rocking back and forth as the vehicle accelerates and decelerates