First, thanks for all the advice and replies to my pleads for help back in mid July. My 80 overheated near Las Vegas on my way to Salt Lake City, but a new stat and a new 93/94 radiator fixed the problem. Thanks to cdan for getting the radiator out in a hurry. I drove from Salt Lake City to Mammoth Lakes to Los Angeles and my overheating problem is gone. I put about 1,000 miles on this drive and the gauge stayed flat the whole time. The dealer in Utah said the fan clutch was fine, so I didn't replace it. I haven't done the fan clutch test, but I might if I feel like sticking my hand in and attempting to stop the fan. I also watched for bubbles in the coolant as an indicator of head gasket problems, but nothing. The engine oil also looks clean -- at least by visual inspection. Again, thanks for all the advice. I feel confident that my 93/94 radiator on my 96 will keep me cool for a long time.