I finaly got my drive shaft back and in the truck (1977 GMC Jimmy 4" Suspension lift 33" tires) and got to take it out on the road. Everything seems ok except when you romp on the gas from a stand still. When you do the front passenger side vibrates and shimmies. It doesnt happen when youre just cruising or take off softly. I havent got into it much yet, so im open for sugestions. Wheel bearings maybe, but they were just replaced last year along with the wheel joints. It has a NP203 transfer case with a SuperWinch 4x2 Conversion. The front locking hub seems a little loose, but the screws that mount it are tightened all the way. Any feedback would be great.