ok. i was running 31x10.5 bfg a/t's on my 60 with the stock suspension. just put a 2.5" bds on, and the things look dinky. been contemplating 33x10.5 or 33x9.5's. i've seen a lot of chatter about re-gearing to help going up hills. as i frequently live in areas where hills are the standard. i've definitely noticed some slow-going. so, could someone either point me in the direction of a write-up of what is involved, and/or give me a brief explanation - plus, is this something that would be relatively easy to do myself?