Update, Im so stuppid, I finally propperly cleaned the AC condencer thats in front of the engine radiator, it looked clean at first glance but after i removed the screens and could see between the two i found it was clogged full of dirt. anyway I mowed for 4 hours today in 100`temps and stayed cool. and to think all these days of swetting when all i needed was a water hose. anyway thanks for all your help, and some of you even told me axactly what the problem was and i just didnt see it, to be honest i confused the transmission cooler for the AC condensor for a few days of looking things over.