I was wondering if anyone had any suggestions for preventing back pain while riding in the truck. My husband is a driver and a couple years ago switched to a rural route where he is constantly on gravel/county roads. His back is being jarred around all directions with each bump due to lack of suspension. Has anyone found anything that can help stabilize your back while you drive? Or help with shock absorbing? He already tried the "forever comfy" cushion advertised on tv and that only helped a tiny bit and wore out in about a week. Just to clarify, the back pain is not from lifting packages--he's on a route with very minimal heavy packages. Thanks in advance!