Last time I was under my truck while looking at the CV joint on the drive shaft heading to the rear there appeared to be a grease fitting in the center of it. Would this be a grease fitting and if so should this be greased next time I do the balljoints and tierods.

 

This is not a CV (constant velocity) joint, but a typical universal joint (u-joint). From the factory, these are not serviceable, but typical replacements are. Give it a shot of grease every time you change your oil and it will last a good long while!

 

OK thanks, yah I didnt know what to call it since it was a double u-joint thing similar to this http://www.4x4review.com/Portals/1/O...h/CV-joint.JPG.

 

Ok, that is a double u-joint. Is this on your Bravada??

THIS EXCERPT available from Google books will explain a bit about driveshafts and their related components. The double u-joint style CV really is not a CV joint in that the driveshaft will still have a somewhat jerky movement to a certain extent. It does allow for a much smoother operation at higher driveline angles though.

 

Yah somethin very similar to that picture is on my bravadas rear drive shaft, and it appears to be stock.

 

Ok sorry to drag up my own dead post from last month, but its related. I bought the 90 degree coupler so I can connect to the fitting in it, I have also looked up some info apperently its called a double cardone. My questions are how many grease fitting should be on it I have read anywhere from 1 to 4 on these things, also since I havent greased it since I owned it and based on how it looks probably never period how many pumps should it take or how do I know its full?

 

Only a few pumps per zerk are necessary. You really cannot over grease them unless the seals work so well that they push off from the pressure.

The number of zerks depends on the joint. Typically there will be two zerks, one per cross shaft.