hey guys can use some help with tire size i have a 2.5 bb lift with after market 9" wheels. will a 13.50 tire rub i think the back space is 5 or 0 offset

 

You can avoid rubbing if you drill not to turn steering from end-to-end.

For 2~2.5BB, best tire will be 33x10~11.2 (not the issue of rubbing but considering
overall balance and efficiency)

For 3~4" liftup, you can use 35x12.5 but still rubbing with fender while rock crawling.

If you are not serious rock crawlker, 2.5BB will be the best and you don't need
to consider more parts (adj. trackbar, longer swaybar link, etc..) to be replaced
when you go more than 3" liftup.