Working on grinding down the my Dana 60 calipers for the 15 inch rims. Finally got one down to where it doesn't grind. However, it sure seems thin. These seem to be quite a bit thinner than the article write up in the technical section. I had to grind off quite a bit of the outside of the pin that holds the caliper off, is that going to be an issue? I just want to be sure this is going to be safe. Sure seems like I took a lot of metal off. Thanks for the help.