[markjohnson]

Rob is right about cinching the car down tight to eliminate suspension travel. If you have an expensive set of shocks like a set of QA1's or maybe even a rare set of NOS factory ones, it can wear them out after many trailered miles. This can even be proven by feeling your shocks with your bare hand immediately after stopping at a gas station or something. They will be warm or even hot to the touch meaning they are going through many cycles of rebound & compression. I picked up on this while trailering my Drag Radial shootout car many miles a few years ago. While I would cinch down the frame in the front, I still used axle straps (crossed!) in the rear but with the knob-adjustable QA1's, I would turn them to their stiffest setting for trailering and then soften them back up for the track.