I have a serious vibation from the under side of my JIMMY. Whats the deal. My U joints apear to be fine. the ones on the rear shaft are new. Truck was driving fine then one day about 3 weeks ago. This vibration starts. I regreased all greasable areas That really helped in the front shaft which was dry. YIKES! I am waiting to fix some of the under problems because I am hoping to get my lift soon. Though the longer I wait to find this problem the more money I'll end up spending. Which also brings me to ask. does anyone know a good place to get some drive line work done in Grand Junction? I'll need it when I get my lift.Thanx 4 da help all and happy new year to ya.