[notmytarga]

Case savers have more meat, require a larger bore to place them, and have course external threads. The location that your pictures show had been 'certed' on both of the engines I own. My machinist believes the factory did that location on magnesium cases. Why that stud and no others? I think it would be the location most likely to get overtorqued because it is accessible, it's on the topside where it holds more weight and as I recall that is the location where a bolt goes into the case from the transaxel - more susceptable to crossthreading.

To fix the side that pulled - use either a casesaver or timecert depending on availability/cost.

BTW - I wouldn't remove a solid timecert to place a casesaver. Either should work well if competently placed. My machinist used timecerts for my headstuds - I didn't quibble with his experience. A different machinist that does VW work uses timecerts because they allow for more material when enlarging spigots for those bigbore kits.