I have been reading the driveshaft threads on here. I have a 1999 D2 with almost 142K on it. I bought it with about 130K on it.The driveshafts were replaced before I owned the vehicle and it has grease fittings. I have greased them but I still notice slight vibration above 40 mph. It feels like a driveline vibration and I want to be sure the driveshafts arnt going bad. How do I check to make sure they are ok?

 

Two thoughts, there is a hex plug and each drive shaft, remove it and install a grease fitting, then lube the crap out of it, reinstalling the hex plugs when done. Then go look at the rear roto flex and see if there are cracks showing up on the rubber between the six bolts, if so, order a new factory rotoflex from,
http://www.roverconnection.com/ They about the best price out there and it is a ten minute replacement so you can do it your self.

 

I will do that. Just to make sure. How many grease fittings should I have on the front and rear drive shafts? I need to make sure I am not missing any. I really don't want loose the transmission or transfer case.