i saw a skidsteer tied down with ratchet straps come off the trailer at 50 mph going downhill, the damage it did to a row of trees was impressive. the point is i would not trust those things to tie down anything heavy. my friend won`t either as he wrecked a machine that he paid 22,000.00 for. he now uses good old chains and binders. the straps were not the foriegn made ones either. larry