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
I would go with plan C especially if it's got the right numbers and dates for an A12 car, you should be able to get enough to buy an S60 setup as you want . Otherwise if it's really low miles and not ugly inside plan A will be fine.
I bought one of the Ebay spreaders, you only need to spread it no more than .020 ... per service manual ... or you risk damaging the housing ... yes you can pry it out and
it back in but where is the metal burrs you are raising up going as you
it back in ?