I'm looking at buying an '05 dodge 2500hd and was wondering what the common problems are for this particular year model

 

Driver seat is uber uncomfortable. At least on my '06. There are lots of reports of the foam breaking down on the inside, mine is almost there, but thinking it's ready for a repair. Even new, it was not as comfy as my '01.

 

Truck has fitted seat covers on both front seat, console, and rear seats. I looked under the cover and the seat doesn't look like its in too bad of shape. Anything about the drivetrain that was a problem?