Replacing U-Joints

Hey guys..so I have this squeak under my truck and I'm guessing it's either the U-joints or the center support bearing. Since the U joints are fairly easy to replace I'm going to go ahead and do that and see if it takes care of the problem. This will be my first time attempting to replace my U joints..is there anything special I should know? I know I need to mark the position of the drive shaft and yoke. Anything else? Thanks

 

Have you lubricated the U-joints lately? That alone might get rid of the squeek.

 

Yes I have lubricated them and the squeak is still there..so I'm going to see if replacing the U joints will take care of the problem

 

are there any certain torque specs that the bolts that connect the drive shaft to the differential need to be?

 

Have you checked U joints for play or movement by grabbing the driveshaft at the point of connection (front & rear) & check for side to side movement ?

 

X2 You can usually check your U-Joints by twisting the driveshaft and feeling how much "play" is in them. If it feels loose they should probably be replaced. If everything feels tight, then you have another problem to look at. Start by greasing every grease zerk you can find...

 

I fixed the squeak. It was the rear U joint on the rear drive shaft. It was squeaking like crazy. Glad I put on end to that! Thanks for all the advice!