The really fun thing about having the engine back in my truck is that now I can find out how badly my custom made exhaust headers don't fit, because I totally forgot about the existence of the front axle while I was building them.

Which means I get to build them again! But better* this time!

This is the one that fits least worst, and it points directly at the diff cover.
The other one can't even bolt up because it hits the top of the diff housing.