Transmission Whine

[brad.blankenship]

So, I have began to notice a whine coming from somewhere in my drive train recently. Within the past 20K miles I have serviced my 68RFE transmission...and I made for damn sure I found a garage that used the BAG system...and I have also serviced the transfer case. The whine seems the most noticeable at about 35mph in 4 & 5 gears. When coming to a stop, the whine ceases when the torque convertor unlocks. Based on y'all's experience, what is your best guess regarding cause?

 

[DonFitzwater]

Truck info would be helpful

 

[brad.blankenship]

My bad. It's a 2010 Ram 2500 4x4 crew cab, regular bed, 6.7 CTD, 68 RFE transmission and a 273 transfer case. Currently has 101K miles and is meticulously maintained. I haven't used it for pulling yet, but that is the plan within the short term future.

 

[Cummins12V98]

" 2010 Ram 2500 4x4 crew cab, regular bed, 6.7 CTD, 68 RFE"

Fill this into your public signature! What is a regular bed? Short or long?

What is a "BAG" system???