The engine is supported on top of the front suspension cross member by two 45-degree rubber shear mountings, one at each side of the engine. The third engine mounting is located under the transmission extension at the rear and is supported on the transmission-support cross member in the underbody structure. The removable portion of this cross member also is isolated by means of rubber bushings. By disconnecting the four rubber-isolation mountings at the front and the center section of the transmission-support crossmember at the rear, the front suspension and power plant can be removed as a unit.