I recently sold my ams crossmember because I just got fed up with the vibration and noise, especially after cams. I bought an oem one and the holes are off by about 1/2"! I obviously can't move the radiator mount, so would loosening the subframe bolts move the subframe enough? Only reason I ask and not try is because I started to yesterday and the main subframe bolt just keeps spinning. I'm gonna get a nut splitter, and replace the nut but am I just screwed?

I should mention my car was in an accident with the previous owner and the radiator mount was replaced. I guess they welded it a bit far off! The ams one works because the hole that mounts to the subframe is slotted so it has room to move and the oem one doesn't.. help!