I go thru the traction bars on my Day two 68, I use to go in front of the axle around the leaf spring mount and down and back on cars without. It won't move or scratch...Same with the front, cross and leave the winch cable attached to the sling with a bit of slack. I let the tie downs hold the car. Never have they gotten loose or has the car moved. Both on a open trailer and enclosed.
BIG
