OK, After searching the forums, I couldn't find quite what I was looking for. I wanted to carry bikes: 1. In the back BELOW the roofline so garages and kayaks on the roof wouldn't interfere. 2. Lockable 3. Clean installation 4. Mount able to hold thru-bolt or standard axles...

Following examples by Dust and mtrotman, I installed a couple of Rocky Mounts bike holders on the front bed panel. Since one of my bikes is a road/touring bike with drop bars, I had to mount them a little higher on the panel so the left brake/shifter lever wouldn't rub the cab's brake light...