Abstract: A cab body mounting (100) in a vehicle has a frame-side bracket (102) attached to a chassis frame side rail (18) and a body-side bracket (104) attached to a cab body rail (16). An elastomeric bushing (108) and a fastener (109) associate brackets 102, 104 so as to allow limited motion between them accompanied by bushing deformation. Bracket (102) has an upright wall (110) that is spaced a distance from an end (16E) of rail (16). A sufficiently large relative acceleration of the body on the frame, such as during a frontal impact, will cause an edge portion of bracket (104) to abut wall (110), which arrests further movement of the bracket in the fore-aft direction, and thereby shares the loading that is being imposed on the mounting due to the acceleration force. This occurs before the stress in the shank of fastener (109) reaches the characteristic maximum allowable shearing stress for the fastener material.

Abstract: A mobile vehicle suspension containing a leaf spring or set of leaf springs engaged between a forward frame bracket and a rear frame bracket; the frame brackets being engaged to face of the frame rail for each frame rail. The leaf spring is engaged to an axle through a pair of U-bolts. There is a U-bolt seat with a widened rubber spring engagement face; the U-bolt seat is sandwiched between the curved portion of the U-bolts and the steel spring. There is also a rubber spring bracket engaged to each frame rail. Each rubber spring bracket has a rubber spring that is aligned to make contact with the U-bolt seat upon a modest increase in chassis load beyond a very lightly loaded condition. Thereafter the rubber spring remains in contact with the widened rubber spring engagement face.