The only problem is that the bars are meant to brace against the inside of the truck bed and expect to be held in place against a fairly rigid structure. You'll have to find a suitable spot in the cargo area. If you brace the bar up against the flexible door panels or such then the bar might flop about losely. You can also achieve a secure mounting system with a large board of plywood (cut to fit) with fork mounts attached. Fork mounts cost about $15 each. I would also cut slots in the "other end" of the board so you can string a strap of velco through in order to secure the rear wheel. This will keep the bike more stable.