My dad has an 05 Dodge Ram with the Hemi. I don't know much about trucks, he doesn't know much about the internet, so he asked me to look around for him.

Basically, his truck is vibrating when he's going down the road straight. You can feel it in your feet and in the seat. If you turn the wheel just half an inch either way it goes away until you straighten back out again.

I searched around and found some other information, but most seem to have the problem when turning, not when going straight. He thought it might be his tires so he went and had his snow tires put on and it didn't fix it.

I'm pretty sure it's at all speeds and fixes turning to either direction. I'll get some more info from him tomorrow like speeds, tire size, and if it's lifted (I think it might be a little). He called me in class tonight so I didn't get much info from him.

 

Where are you located? Also, is it 2wd or 4wd? Did it start happening recently with winter? Have the tires been rotated from front to rear to see if they problem moves? Are the tires properly balanced?

 

Check u-joints in front end and front driveshaft. That just had this happen to my wife's pathfinder - the U joints in the driveshaft were shot, and caused a pretty bad vibration even in 2wd cause the ds still spins even when not in 4x4.

It could be brake or tire related, but I'd bet U-Joints.

 

my 05 had a vibration when driving straight, ended up being a ball joint and tie rod end