Had the same happen to me a couple months ago. Nutserts in the frame were rusted out. Had to drill them out and ordered a kit from dealership to fix it. I can track down the part # for you just pm me. Kit includes a rivet like sleeve that goes in to the frame and pinches to stay in and the necessary bolts to screw into them. I tack welded the inserts as well for good measure. I had to find the part # myself as the dealership claimed they had no such repair kit. I gave them the # to look up and sure enough they do make it as it is a very common problem here in the northeast.