04 ram hemi 1500 4x4 165,000 mi.. the trans seemes to buck or stutter to shift when going up*hill*in OD before down shifting. I have to hit the pedal or take it out of cruise to*make it shift*

Any help?

 

When is the last time you had your transmission filters changed and fluid flushed? They should both be done every 60kmi, but the filters definately every 100kmi an sooner if you do city driving.

 

just had the trans serviced. but may been a while since I can be sure the filter was changed

 

this has been an issue for a while and it seems to have got worse. I had the superchips tuner set to 91 but now its retuned to stock. still does it, not as bad but still does it

 

So any ideas of what's up with this trans. The dealer can't diagnose it without trouble code

 

Well theree are 2 filters inside the transmission pan. It would be a good idea to change those out even if it doesn't fix your problem. That is where I would start!
Almost sounds like the filters are semi-clogged and not allowing enough fluid to build the pressurequick enough. using the electronic controls overrides certain gears and can help in shifting in the O/D gears.