I just installed the VW mounts a few weeks ago in my '68 TC. The left side (this side has a bushing) fit was loose and the bolt dropped right in. The right side has no bushing and was much tighter. I had to tap the bolt to get it through the bracket but no drilling was necessary. The tight fit on that side made getting the threads aligned more difficult as I had to move the gearbox up and down and side to side to get any change in bolt alignment. If I was doing this again, I would probably drill the bracket out very slightly.