Just bought a 2006 Dodge 4x4 SLT long bed that's got 105,000 miles with a rough country leveling kit. The other day I was backing my 26' Springdale camper up my steep driveway for the first time but had no problems getting it up there in 4wd high. Afterwards I noticed that driving on the highway I now have a slight vibration at around 50 mph and can feel it in the steering wheel. I have checked everything and had the tires re-balanced by my son in law at his dealership. I even removed the front shaft and still had the vibration but didn't seem as bad with it out. I didn't have the vibration until I backed the camper up the driveway. I didn't spin the tires at all and it seemed to push it up the driveway with ease. Looking for some suggestions as to what it can be.
It is a gravel driveway that is very steep. Yes it is a 2500. Checked axle joints and found no play. One thing I forgot is that sometimes while stopping with the windows down you can hear what sounds like a bird chirping sound from the front as you apply brakes and makes the same sound when backing up without brakes applied but only sometimes.
Mine is ok locked in on gravel, doesn't like dry pavement. The chirping is almost always related to bad u joints. My money is on one of the joints being the problem. I'd look for red dust around one of the joints indicating it being worn.