The bracket was put on with two bolts holding it. Even though they sent the mylar template for bolt hole locations for the central part of the bracket, I wanted to mark them myself using the bracket in place.
In order to be as acurrate as possible, I used a 1/2" dowel as a spacer/guide and drilled a 1/8" hole thru the middle.
The red tape was added because the holes are actually slightly over sized for the 1/2" bolts. I think 17/32". The tape created a snug fit.
After I marked all the holes, I went to take the bracket off. One bolt locked up and I could no longer turn the nut either way. That is how I learned about Galling.
