could be the front end parts, I got mine covered under warranty earlier this year, they replaced both sides: upper control arms with new ball joints, new rack and pinion, new tie-rod ends and of course an alignment that ended up causing the truck to pull pretty heavy to the right. All that did help tighten it up but what I couldnt figure out is why they didnt replace the lower arms too. It still has some shake but not as bad as it was.

 

Thanks

 

In fact the dealer that did the work is offering a free alignment today so I took the truck back in because the service manager told me that Dodge has had some issues with the wheel bearings being bad especially on the '04's and since my rear diff is still leaking after the idiots at AutoNation serviced it awhile back, they are going to do it again for me and reseal it again. I should get the truck back sometime this weekend... got to love their 24 hours a day service dept.