I have 3 gauges in a pillar mount (EGT, Trans & boost). As others have said I would not tow without them. I have also added a "chip" and a 4" exhaust and still noticed that I could get up to 1400 EGT if I let it when pulling some of the mountains in Colorado. All the mechanics that I have talked to recommend that the EGT thermocouple be installed pre-turbo for a more accurate reading. I have also read that early the Ford transmission temp gauge is not a true gauge in that will only read 3 temps (cold, normal & too hot). I don't know about the later ones. I purchased the gauges from Geno's Garage (online) and installed them myself. Geno's supplied very good instructions, but I do not remember the cost. When I got my Monty is installed a larger transmission cooler and a larger transmission pan. I now am able to keep the transmission temperature at about 150 when pulling and think that the lower temperature will increse the life of the transmission.
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