we just bought a 2006 durango with the 4.7 and when its cold it shifts up and down, they had the trans. flushed but dont believe theychanged filter will that help?

 

https://dodgeforum.com/forum/dodge-d...s-section.html

ill move this to the 2nd generation section, however whenever you change trans fluid you should change the filter, as that is where the restriction will be if there is one, it is almost useless to put clean fluid through a dirty filter

 

+1 on changing fluids but not the filter...wouldnt go back to that shop.