Back in business!!! New diff solved the problem. No squeaks, clunks, bangs or pings back there. Guys had a REAL chance to put it through its paces....driveability stuff in terms of tune and ride. Lol, hardest accelerating NA car they've driven short of their high 8sec shop car....except this one stops....HARD.
Brought it home today....nasty car....lots of adjectives, but nothing that really defines it. Solid suspension but firm/jarring on these lovely Michigan roads, purrs quietly along in low rpm and is flat out possesed from 3500 to 6500, Hoping to put a few miles on her over the weekend to get a better feel. Might even take a few pics