2004 FORD EXPLORER SPORT Power Train Problems

STARTED IN 7/2007 HAD VIBRATIONS IN DRIVE TRAIN, FORD STATED IT WAS THE DRIVE SHAFT. FORD REPLACED THE DRIVE SHAFT WITH A HIGH-PERFORMANCE BALANCED ONE. VIBRATION STOPPED. IN 10/2007 THE EXPLORER WAS SLIPPING DURING ACCELERATION, AND SLAMMING INTO GEAR. OVERDRIVE LIGHT WOULD BE BLINKING ON AND OFF. THIS TIME THEY HAD SAID THAT THEY HAD TO REBUILD THE TRANSMISSION DUE TO A BAD ORIFACE. LATER I FOUND OUT THEY ONLY REPLACED THE VALVE BODY AT 24072 MILES. I ASKED ABOUT THE LAG TIME BETWEEN PRESSING THE ACCELERATOR AND ACTUALLY MOVING AND WAS TOLD THAT THIS WAS THE WAY THE VEHICLE DRIVES DUE TO NO CABLES FOR THE THROTTLE IT WAS ELECTRONIC AND THERE MIGHT BE A COMPUTER UPDATE AT A LATER DATE. IT HESITATES UPON ACCELERATION JUST HAD TO LEARN AND ACCEPT IT. VEHICLE HAD BEEN FINE UNTIL ABOUT FEB 2011 WHEN IT STARTED TO SLAM INTO GEAR AGAIN, AFTER...