My daily driver is a '73 K-5 (350/350/203). I have approx. 3" of suspension lift planned for it and would like to take the tire and wheels to 33x12.5x16 (approximately). Right now I'm riding on 32x11.5x15, stock suspension, standard Chevy 59 series Rallys. I realize this isn't a huge jump but would give me a little extra clearance for the rare occasion where I find myself offroad and look more aggressive. I'd like to keep the 59 series Rallys as the truck appears stock and I'd like to keep it that way. Does anyone know where I might be able to get some 16"s? I believe Stockton wheel will mod your own but I was wondering if anyone simply manufactures these for the aftermarket. My other question: I only find standard sizes in 16.5". All 16" sizes are metric (305/75/16 that's metric measurement, right?) What metric measurment approximates 33x12.5x16? Thanks again.