You all have been helpful with my 2011 so figured i would post here first. I have a 2009 ram 2500 5.7 145k it is the 3rd gen body style even tho its a 09. I have noticed some of the parts i have to use are from a 08/09 it came from canada so its all weird guess it was made mid year or something aha. Any ways its my fathers truck it has been a pain in the ass since we got it we can not figure out what this vibration is. It starts at 40mph you can feel it in seats/floor/steering wheel. Then hit bout 50 goes away not noticeable. 60mph+ the whole truck vibrates BAD again you feel it in the seats/floor/steering wheel i hit 70mph and had to slowdown it only gets worse its not driveable past 60 . Also No this is not death wobble had that already ans fixed it. Things we have replaced/done. rear driveshaft rebuilt cost me $450 took front driveshaft out to rule it out did both ujoints in front axle Both front hubs had tires balanced at reg shop not stock tires so they are bigger they are stock tires off a 2013 or some shit will get pics. I am at a loss here we are to far into it $$ to sell it. Could it still be tire related??? The only other thing i noticed is the transfer case leaks the tag on it says was redone in 2016.. i just keep filling it up Could the transfer case cause vibration like this? 4wd works fine also. Any input appreciated.