HELP drum to disk break swap lower ball joint same or diffrent

its my steering yes and drilling out the ball joint HOLE thats already there by 1 mil is not going to affect any thing strength or saftey wise if it would have mopar would have done alot more racing and beefing in that area
i have ordered my disk ball joints and when i pick them up monday i will post a follow up if there different if there the same minus the hole size you bet im gonna drill them.

im taking 1 mil off a hole witch in return is taken that number and cutting it by 4 because theirs 4 quarters or two half's what ever you want to say in a circle and do the math on material left on the ball joint the thinnest spot is still over a 1/4 inch thick
i think it can can handle a hole drill one size over

i build crash test cars and barrier impact cars for a living and run a accelerated sled for crash testing you would be surprised at the cobbled up cheap a$$ thinned down stuff the big three to to keep money ma mopar was just a little better at over building back then compared to now