I have 05 3500 dually my only complaint is the drone that i get at about 1800 to 2000 rpm most im sure is coming from the after market exhaust. I keep reading about this vibe problem but i dont know what it is. can someone explain so I know what to look for. I read that the long box 3500 have not been prone to the problem is this true? I only have 4000 miles on mine thus far and heard that the "vibe" can come later. hope I dont get this problem. thanks

 

This thread :https://www.dieseltruckresource.com/...threadid=62911 has some info on the vibe/drone, but those that have it mention the drivetrain. Did you have any noise before you put the aftermarket exhaust on?