I thought the same thing when I picked up my 33's. They looked way bigger by themselves than I remembered (I had 33's on a previous rig). They don't look as big once you get them on. Are you stock or do you have a lift?
May be tight. Depends on how much sag you have. Guys have run 33's stock with no issues, others rub. Being 9.50's will help. I have 3.5" (probably 3" now that it's settled) of lift on mine, and the 33's fit nicely, with plenty of room. It's in the registry, #525.