Cab chassis 14b is 63" wide.
By shaved, I meant just getting a 13bolt cover from Barnes or undercover fab. Not a full ring gear shave.
Hubs can be converted to 6lug.
But yeah. Disc brake explorer 8.8s are cheap.. I haven't seen one with stock 4.10 gears though.ever. always 3.55 or 3.73.
I swapped in a disc brake 8.8 into my jeep when it was still stock and it had 4.10's. I picked it up at a junkyard too and I'm pretty sure it wasn't aftermarket gears.
Another option would be getting a dirt cheap rear Dana 60 30 spline, and welding the ends of a Toyota housing on it to run Toyota shafts/brakes/etc...