Ok, I just put in a rebuilt tranny. I adjusted the kickdown and put the proper amount of fluid in. Im test driving the truck and everything seems to be ok, until I give the truck some more gas. When I romp on it, it will reach like 3 or 4 grand and then the engine will seem to cut out completely. Then a couple seconds later it will rev back up again. Could this have anything to do with the new tranny or the torque converter... or is this something entirely different? Ahhh!!!!