So, I plopped my calculations in: Fifth gear: 0.73 x T-case high: 1 x Differential: 4.10 = Final Drive: 2.99 Tire size:245/75 16 (supposd to be like a 30" tire, mine measured 29") So, to keep the optimal fuel band of 1900-2100 RPM, I would have to drive at... 55mph?? UNBEARABLE considering most of my highway driving is a minimum 65 and a max of 75. so, I have to find a 33" outer for optimal flexibility at 65-70mph, and a 35" outer for optimal flexibility at 75mph. I think I'll stick with the 33" outers for now. Since the consensus is 285x75 for my 16" rim (unless someone knows something slightly bigger that is widely avaliable). I shouldnt have a fitment problem, since Im replacing my fenders with fiberglass with a 3" flare. Any other thoughts? Any brands? The kumho's look pretty affordable. The other choices would be the walmart liberator. (looks like a firestone??).