OIL FILTER
The bolt pictured here with this adapter fail. The problem is the 4 holes in the sides are drilled directly aside of each other making them very weak between the holes. Look at the bolt and see if this is the style. If so check to see if its stretched between the holes. They make them with 4 staggered holes or 2 oval holes on the later adapters due to this problem. I know yours is not the oval holes because they have a smaller hex head . So yours would be straight or staggered. If they are straight drill be cautious using it. Just an FYI
here is a replacement bolt with the upgraded staggered holes
https://www.classicindustries.com/p...ETsrTwNkFsxw4iYAVnUaAsOWEALw_wcB&gclsrc=aw.ds
here is a picture of the defective style bolt below
