So, who's car is this? Maybe a member here or should be.

Lots of good money spent on parts, but holy hell, what a mess! Looks like the transmission is on an angle too, but maybe just not bolted to the crossmember. Yeah, that "X" pipe, wtf?
A 9 inch Currie differential doesn't come cheap, plus rear disc brakes, somebody has a lot of good ideas, but it sure went sideways.