[Mdriv3r]

Originally Posted by lowkey_domm

essentially in order to fix the stripped threads you're tapping out the old and replacing them which would change the size of the bolt right you would be inserting into the oil pan?

You will cut out the old threads and put the insert in. The outer threads will go into the area you cut out (there is a thread tapper you run after cutting it out). The inner part of the insert will be the same diameter and thread pitch as before. So you can now use the same stock oil plugs. The insert is stell and much stronger than the stock aluminum threads. So original mechanical strength will be returned and actually increased.