Hemi Joel wrote:
I could triangulate the mounting of the bike rack with ratchet straps going from the center of the rack out to the corners of the truck to keep it stable, either on the front or the back.
I double this advice from Hemi Joel. I have a nice Yakima rack mounted in my rear tow hitch extension in back of the camper and the play up and down was too much and tries to launch the bikes off the rack. Almost lost one kids bike first time out with it. Tie down straps to the jacks in the back fixed it.
Used a ladder rack for a while till it broke the ladder. Mine is very light aluminum. Had to insert 1/2" copper pipe into ladder pipe and drill and screw down. Used generous amounts of JB weld where it attaches to the rung of the ladder. Just too much inertia when hitting dips or mild off road.
