[Mike C]

My kid’s Jimmy has a TH350/205 combo with 3.73 and 35” tires. If you do the math, it’s pretty much exactly the same gear ratios as the 3.07 gears and 28” tires the truck came with. It’s a nice driving combo. Motor has a mild cam (204/214 at .050) and we did put a 2000 rpm converter in it. But yours will have a little more gear with the 33” tires. Be prepared for a 5% increase in rpm on the highway because of converter slippage. My Jimmy with SM465/20, 4.10 gears, and 35” tires is almost exactly same rpm as his at 65 even though it has 10% more gear.