Another question I have is are these units just destined to fail after high
mileage? I got my R-T in 2004 , as the second owner with about 40K on the
clock...am up to about 169K now, but I would say almost all of it is in 2WD.
When I use the 4WD , its only in the winter to get out of tough spots, or if
the roads are really unsafe for 2WD. It was kind of a surprise to hear the
grinding noise when I needed the 4WD this winter, because its so rarely
used. I suppose the body shop I had the truck at could have switched into
4WD while returning the vehicle to me after some work I had done, and not
told me. Before that , one mechanic did say it needed a new frond drive
shaft joint, and when he recently diagnosed the T-C as being the cause of
the grinding noise, he recommended replacing the entire drive shaft
too...which I do not understand, because after looking underneath, the drive
shaft looks fine.