regear

Hey Guys, Im trying to plan out a little build. I am looking to the 2" fox level, swap the rims for some +20mm offsets and put some 255/75/17 (32") tires on the truck. The tires would be C rated.. around 45lbs. So far I believe it won't rub anywhere because of the level, and I would be getting...

I want to take my Ranger off-roading, mostly rock crawling, or whatever rock crawling it can handle, Lol. As such, I want to increase tire size to 33s. Do I need to regear?