I bought a 2007 cclb "classic" truck a few months ago, it came loaded, 6" lift, 35's banks six gun (speedloader) with PDA, exhaust/intake blah blah blah, has 84000 on it, from the beginning if I ever railed hard on it (in the speed loader setting) it felt as if the tranny SLAMS out of gear roughly 5 seconds after WOT, so today I made a pass around a car on the 4th setting (which is where it is normally) it did the same thing, "i floored it, and about 5 seconds later, the tranny felt as if it broke in half.... so immediately i let off the throttle and eased back into it and it was fine...no codes nothing out of the ordinary, it remains in normal operating condition. Anyone have any ideas what could cause something like this?