GM T-BODY 4 WHEEL DRIVE VEHICLES 2002 > LOSS OF CONTROL DURING 4-WHEEL DRIVE CONDITIONS. TRANSFER CASE SHIFTING IN AND OUT WITH OUT WARNING, CAUSING A SLIDE AND SPIN OUT CONDITION. HAVE BEEN IN TOUCH WITH GM AND WAS TOLDS CONDITION IS NORMAL. THEY BLAME THE DRIVER IS DRIVING TOO FAST FOR CONDITIONS. OTHER VEHICLES HAVE NOT LOST CONTROL UNDER THE SAME CONDITIONS AND SPEED. *AK