I need some help. I know it's not a 24 Valve but someone may have some insight. We took the wife's 99 1500 318 gas (Prod. Date 11/98) into the dealer today due to what sounds like a pump whine (moaning) when put into reverse mostly after starting for the 1st of the day(50-70 degs. in the garage). The main reason I thought it should be checked is due to the shutter you get in overdrive, at cruising speeds, with light to moderate acceleration. It feels to me like the torque converter. While the shuttering is occuring you can of coarse pop the OD out with the button or decelerate and the shuttering stops. The dealer said it's normal??. Has anyone out there had any simular occurrences??