squeaky driveshaft

[steveroche]

So today i started hearing a speed related squeaking coming from the rear end of the driveshaft. It gets higher pitched as i speed up and then goes away after i get up to around 30mph. When coasting at higher speeds it doesn't squeak and when coasting very slowly from a stop it does squeak. It seems a little dry around the area of the slip yolk and there is a lot of dirt down there. I am going to power wash the area and see if i can get rid of the dirt and see if the noise is still made. I think it may need to be greased but from other searches on google i have found that there may not be a grease point on the factory u-joint. Has any one else had a problem like this? I have narrowed it down a little: it is definitely the driveshaft, it is definitely the rear end of the driveshaft, I don't see any grease gun points around it...
Any help is greatly appreciated, this squeak is annoying the hell out of me.

[steveroche]

Nevermind, i figured it out...gonna replace the u-joints next weekend.