SBP or BBP?

Had a much better post ready, and lost it to a stray electron...

So the small rear end is such a pile of crap it will blow up with a 318 & a 727?

Ok, so what am I looking at to put an 8.75 in it? Is this a bolt up job - or am I looking at grinding every bracket off of something & starting over?

Complete new rear end, complete new front end... what next?

B.