I just bought 85 4runner last Dec. which has 35" tires with 4.88s. I was surprised how well the gears work with the size tire - I can do 75mph easy on flat with no wind and 65 uphill against wind on the interstate (w/ D.T. header). Not so easy on my '02 TJ with 4.56 and 35" tires (maybe because of brick aerodynamics).