The problem with drilling into the drawbar would be the possibility of rust starting where you make a hole in the Galvanising, U-bolts would be a better option
Hi Cancan, your suggestion to add rubber between tool box and aframe? Is that for some structural reasons or jut to stop vibration or something.. Sorry if it's a stupid question.
for vibration ....my box trailer didn't have any rubber between tool box and a frame and there rust between the two where as camper trailer has rubber and that has no issues.