I havent talked to them about why they want to replace the whole housing yet.
The whole rear end was pushed about 4" to the driver side breaking the bracket off the housing.
Anybody see any real reasons to just go ahead and replace the whole thing?
Nope, get a good welder to weld on a quality bracket and it will be fine. If you got a new axle you would probably want to weld on a new bracket anyways. I run the TF bracket, but RK and Poly make great stuff too.