I actually put together a design for a bike rack that fit between the cab and bed of the truck, and was adjustable to fit upto a 4" wheel....put it on quirky.....didn't get too far.
I should have done the wood move, but i am going to try this. Should be on it's way shortly.
http://www.ebay.com/itm/Bicycle-racks-for-pickup-trucks-Order-a-rack-to-hold-4-or-5-bikes-/251892648458?pt=LH_DefaultDomain_0&hash=item3aa5f8ca0a
Been a while, but thought i would ask about this one. Purchased this one on ebay, says it was hand built and only a few were made. Just curious if anyone has ever seen them?