Well, for some reason, my truck has started to make a nasty vibe. It started last night, then went away. my friend's dad took it out and said something is wrong with either the driveshaft or the diff. We took a look at the driveshaft Wednesday, and greased the U-joints. he said they were fine then. I tried wiggling the driveshaft after I got home, well, barely got home. It didn't wiggle at all. The pinion on the 10 bolt rear was kinda loose, so we tightened it up while we were looking at the driveshaft Wednesday, barely. So I'm guessing something is wrong with the 10 bolt, besides the fact it's a 10 bolt. The vibration happens every once and a while.. but tonight getting home was really bad.. if I went over 10MPH, it would vibrate like it was riding on a washboard. The truck was bouncing everywhere, and I coulda swore I heard a ticking kinda noise. Any idea as to what could be wrong? I've gone through bad u-joints before, but it wasn't this bad. <a target="_blank" href=http://billybob87k5.50megs.com>Homepage of Porky & Stinky</a> ".. Sanatarium.. leave me be..."