i have been reading many posts and some people say 15x10 with 5..5bs will work fine and some don't does having rotor instead of drums have anything to do with it ?

 

disc/drums, not difference in wheel fitment. The wheel sticks out a little, but clears the inside wheels well with larger tires. 6" of BS would be better, but hard to find, 6.5 is best, but will require inner wheel well mods if you are using a large/wide tire