Well let me explain the dilemma then ...
Bought a very nice complete low milage '69 b-body dana at Carlisle. At some point it had some sort of traction bar (maybe ladder bars) mounts attached so there is evidence of the welds but nothing serious.
Plan A would be to seal up the breather, remove the brake parts and give it a very light sandblasting and prime and paint
Plan B would be complete disassembly and then narrow it a few inches.
Plan C sell it and buy a custom unit
The welding for the bars may have tweaked the housing, it's unknown history and If you want is narrower, plan C is like going to be the best and cheapest route
that low mileage may have been a 1/4 mile at a time