i have a vibration between 60 an 70 i checked the ball joints and wheel bearings and they seem tight any orther ideas

tomc983's Sig:

2003 chevy duramax

4in mbrp exhaust

broke belt, bad balance try to switch front tires to back see if that helps
if not got to be another front end part

busta's Sig:

u-joints. I have heard of some radial tires breaking belts in them when you haul a decent amount of weight the procomps seem to do that alot.

toy4xchris's Sig:

95 Dodge 3500 ext drw. Goerend v/b and t/c, stock 215 inj, 180p-pump, 3k gsk, 10 plt, BHAF, schied cam, 4" turbo to side exit exhaust, cowl induction hood, and more to come....

I had a vibration in my '01 2500HD. THe vibration started at 60mph. turned out to be the u-joints. One of the cups had NO bearings in it. It's a cheap fix.

is your drive shaft a one piece or two? I have the same problem, accompanied by a chirping sound, but after pulling the drive shaft this past weekend, found that all three u-joints are good, however the bearing support located at the end of the first drive shaft is bad - the rubber isolator is trashed. Anyone know if this is repairable or is it new drive shaft time?