After installing a Carli adjustable track bar which helped reduced about half of the slop in the steering, I noticed that my bolt hole was egged out. I really don't have access to a welder to weld the thick washers in. I have read that some people are drilling out the hole and using bigger bolts. First question is the extra spacers included with the Carli track bar sized for 16mm bolts? The second question is what size of drill bit are people using? Something I read mentioned 5/8 drill bit. My only problem with that is will that mess up the threads on the bolt when you hammer it through? I would you assume you have to hammer it through because of the size difference.