Hello.

I can hear a clank that seems to be coming from the drive shaft whenever I start and stop moving. I also sometimes hear it when I shift from Park to Reverse.

I can not feel any slack in the drive shaft that would indicate worn U-joints...at least when I try to turn it by hand.

I have heard the slip yoke is a very common cause for this clanking noise for trucks like mine.

When I follow the drive shaft to the tranny, I do not see any grease fittings...all I see is a black rubber boot that has a small hole in it.

How do I lubricate the slip yoke and what kind of grease is recommended?

Do I have to remove the drive shaft?

Thanks.