do you guys recommend i take my 2009 ram to a transmission shop and have it hooked up to their diagnostic computer just to have the fluid and filters changed? guy said something about also checking the hydraulics. i have always just removed the pan and changed the filter, then topped off the fluid. there are no known issues at this time that i�m aware of. truck has 156k.

thx in advance

Have you ever serviced the transmission before?

156k is a bit long to let it go before the first service. I personally just drop the pan change filter and fill it back up.

all i�ve ever done is dropped pan , changed filters and refilled whatever fluid was lost. was just wondering if it�s best to have a computer diagnostic even though everything appears fine?

Drop pan change filter and fill fluid is great I wouldn�t do anything else.

On the subject, I have a '98 1500 Ram , occasionally when I put it in drive and start moving the rpm's will go high and it seems as though the trans has not changed from the low gear, I will tap the gas pedal and the rpm's drop back to normal and it feels like it has gone into the correct drive gear.

I think the older dodge transmissions the torque converter would drain if you weren�t driving so may be the delay before the torque converter fills up again.

+1 but Toyotas have a drain plug on the pan so no real need to drop it although some do. When I owned Fords I dropped and replaced fluid or cleaned the screen if needed every 30K. I still own one Ford but it has a drain plug.