Had your drive shaft balanced lately?

[D-Day]

I had mine done a couple days ago, and it made a pretty big difference for my '73 Chevy crew cab (two piece drive shaft). Took care of the truck wobbling at around 20-25mph, and the oblongish intermittent hum at highway speeds. It'll also keep my carrier bearing from wearing out as fast.

Now all I gotta do is get better tires on the back so they don't hum/vibrate, and not mudders. Oh well...what do you expect at 80mph.