Well on mine its 2" lower (I only have a 2" body lift) no, i have no overheating problems what so ever. When the body lift is all said and done, if you look through the front under the bumper, you will also see a gap there, my intention is to fill that in also (just haven't had time yet) that way all air goes into the rad through the grill like normal. But for now, i haven't had any issues and i've had my body lift on for about a year now /forums/images/graemlins/thumb.gif