My wifes friend has a 02 7.3 with a auto tranny it has 90k on the odometer. The truck never moves without a 4 horse C and C trailer with living quarters. I would guess her weight to be 9000k-14000k. Her husband wants to run a chip, but he wont put gauges in. He wants to leave it pure stock, except for chip/tuner. I tried to get him to put in a pyro, he wont. I want to be able to tell him a safe one to run, because he was going to put some local guys custom program in and I told him to hold off and I would get him some ideas. Any help would be great. Like I said a woman drives the truck but it nevers goes without the trailer.