Here's a closeup of how I mounted the U-bolts. I could'nt believe this toolbox came with such a perfect way to put the u-bolts in. I just drilled two holes on each side and that was it. Notice the u-bolt strap. That will spread the stress and should keep the plastic from ripping out.
Also, did you notice my rear lights are missing? I got tired of my trees playing T-ball with my lights and took them off. I don't hardly ever take my tractor on the road and my road is a deadend without a whole lot of traffic. It was better to take the lights off than let them get completely destroyed. Hey! Maybe I can mount some lights onto the back of the toolbox. /forums/images/graemlins/cool.gif