VEHICLE FRAME SYSTEM FOR A VEHICLE

A vehicle frame system includes a lower cross frame assembly that is coupled with an axle and includes a frame bar extending between a first end and a second end along a first axis. The frame bar includes a first external circumferential surface extending along at least a portion of the first axis. A first sleeve is configured to be disposed over the first external circumferential surface. A first internal surface of the first sleeve is operably coupled with the first external circumferential surface of the frame bar. The first sleeve is configured for a temperature of the first sleeve to be controlled to change one or more characteristics of the first sleeve. The first sleeve is prohibited from moving relative to the frame bar responsive to changing the one or more characteristics of the first sleeve.