On the Llano trip I tried strapping my axles to the front and back with ratchet straps and then compressing the suspension with chains. Somewhere in San Antonio the hook things on the rear broke and the chain flew off and the Jeep started bouncing around like a mother****er. I don't know how soft your suspension is, but I'm using 4 30,000lb straps (two front, two rear) on the bumpers now. If you're careful about where you run your straps and you don't use cheap ones you should be fine.