I just put my tires on craigslist for trade and a guy called and told me he wants to trade his bfg mud tires for mine and my ? is can i put these on my jeep. (just put in rc 2.5" lift) if i need new wheels what backspacing would i need???
I was running 32's with NO lift and I even wheeled it once like that too.
You don't need any more lift or trimming.
You most likely will rub when turning the wheel all the way. Get some rims with backspacing like mentioned above. You can still drive it just keep in mind when making U-turns or tight turns it will rub.
If you offroad and it appears that you do, 2.5" is not enough lift for 33x12.50 tires, I would add 1" somehow, perhaps by installing a 1" body lift. I know some run 2.5" with 33" tires but they rub when offroad, that much lift is only suitable for 33" tires for a street Jeep. The actual recommendation for 33x12.50 tires is 4" of suspension.
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.