never buy a mechanics car....we know just what we have to fix enough to keep it going....
something goes wrong lol. id rather have wedged the 2x4 and 1x4 in there before it popped, then it wouldnt have moved.
if the ride height change at the right rear is such a worry for you then id assume youd rather someone have blocks of wood in there before it falls the **** off and in the ensuing wreck, a 500$ jalopy slams a schoolbus off a cliff like it was eating crackers in bed.
get it within a 1/4 inch and yer good, if you have a 1/4" gap at the outer seam thats rotted away from the reinforcing plate, the car will sit 1/8th inch lower on that corner, and maybe have 0.2* more neg camber...hardly an issue.
if your worried about yer welds just shove some wood in there for just in case it breaks....haha
just an 04 gt1 stripper, L67/32, 3.29 diff, misc. sleeeeper with the 06 single exhaust and valence swapped on