I just realized my tires are way too big. My last set of tires were 265-65-16s on OE wheels. Those tires were already over-sized from the 235s that came on the truck. This past December I got some new 17" wheels and four new tires to go on them. My new tires are 265-70-17s. Therefore, I have increased both my wheel diamater and my sidewall height. These new tires are almost 3 inches bigger in overall diameter than what came stock. Thinking back on it, I should have gotten some 265-60-17s (which don't seem to exist) or maybe some 255-65-17s. Either way, instead of decreasing my sidewall height to compensate for a larger wheel, I increased my sidewall height and now my tires are way too tall for my stock transmission. First off, is my above thinking accurate? Secondly, how much does it usually run to have the gears changed out? I just had the trans rebuilt about a year ago after it died on me (roughly 130k miles) and that was to the tune of $2200. I'd have to have a shop do it as I do not have the tools nor the knowledge to do it myself, unfortunately. I know the cheapest route would be to exchange my tires for a smaller size but the ideal size I want (265-60-17) doesn't seem to exist. Thanks for any input!