Switching from stud piloted wheels to hub pilot

I have an 89 K100 that has been my on going project for quite a while now. I'm switching from stud piloted to hub piloted due to the truck currently having inside steel wheels and the alum wheels on the outside are all different patterns(pete oval, big round hole, small round hole) i have 8 hub piloted alum wheels all the same pattern laying around the shop so i'm going to run those. my truck has eaton ds 402 rears. My friend owns a local truck parts salvage place so i got 4 hub pilot hubs from him for scrap price they are from a truck which had the same thing ds 402 rears. I was told the inner bearing is different by someone who did it on the same truck as me(year, rears and all) but that is all. Just looking to see if anyone has done this before and knows what im going to need. Thank you for your time