I made a 500 mile trip on Sunday, I have the tru-cool mounted in front of the radiator as pictured above, since my transmission was rebuilt with extra clutches and etc, it seems to run a bit warmer than it used to, at 7-8000ft elevation and 90deg's ambient, ac going and moving at about 75-80mph transmission heated up to 193, that was not the issue, the issue is this made the coolant heat up to 230deg. turning the ac off seemed to help a smidge and coolant temps were then up and down to around 220-225, so I am planning on moving the tru-cool down to the bottom grill and doing like others have and opening up the lower grill holes, just have to figure out some kind of mount. not sure how much air flow it will get at that lower grill or if will effect any other cooling I am thinking probably not because the lower part is below the center of the bumper cover that should be splitting the air 50/50? up/down