my 05 started infrequent transmission slipping from 1st to 2nd. also in 3rd or 4th at higher speeds, feeling like a step on a manual shift clutch - high rev and power loss. brought it to the dealer a month ago but they said when they checked it was shifting at all the right times. Im worried its not gonna get real bad (to the point where they actually feel something) untill after 60k and expiration of the warrenty. any like issues and is it possible/worth it for me to have them pull the pan and visually inspect the gears. ? although not slipping all the time, the van still feels like it has lost some pep and power. thx in advance