Yep, the shoulder sits in a little machined pocket on the block.
I'm stumped unless the Z bar is different, and I seriously doubt that. Another guy suggested maybe my frame was tweaked at some point. Not since I've owned it but who knows? I could always make another frame mount with more offset, or just put my extended Z bar back on.
Wanting a Custom fit in an off the rack world.
I don't have time for a job, I just need the money.