I have problem with early engage overdrive in my my dodge ram 1500 hemi 2008 , the overdrive come early in rpms in the moment that the car don't need , this have results from to try accelerate the car all the time for disengage the overdrive . I live in greece and the dodge in greece don't inport the ram so they can help me because they don't now the car , i by from miami new in 2008

i have problem when i engage the 4x4 and i pull havy trailer in the back , when accelerate the car start to shacking , is like when 8 cylinder engine work with 7 cylinders , this happen only when i pull havy load in 4x4 mode