So I know there's tons of threads about tire sizes for different setups, but I have gone through countless threads without seeing one for my situation. I'm running a 6" rough country suspension lift. I currently have 35x12.5 nitto trail grapplers on the stock all terrain 20" rims. My question is, what's the biggest tire size I can run without trimming? As of now, my options in mind are keep the same size trail grapplers, go up to 37x12.5 trail grapplers, or possibly switch over to 37x12.5 mud grapplers. Any suggestions would help, and pictures would be greatly appreciated!