So for a couple yrs now I've been fighting overheating issues, mild built 350 on propane, griffin aluminum radiator and a Taurus fan. Runs about 190 or so if I'm cruising at normal speeds and flat, as soon as I'm on inclines the temp starts climbing and climbing. On the trails I have to shut down to cool it off to where it's become a major inconvenience. I've tried everything from different fans,water wetter, etc, to still having this pain in my ass. We'll I've never really thought into pulleys much but when I bought this rig it did/does have an aftermarket crank pulley on it which now I think is an underdrive pulley. I went and took measurements and the crank pulley is smaller, has anyone delt with this or know more about it. Why would you want this on a crawler??