Many years ago it was common practice to strip down, inspect and re-pack CV joints with grease. Nowadays its becoming a rare task given the fact that individual parts for these joints aren't available. However, it would still be a viable option if say the rubber boot had recently failed causing contamination of the grease yet there was no obvious wear on the joint. Its also a useful procedure in order to help understand the inner workings of the joint and how the components are affected as they wear.
Its for these two reasons that I still include this operation in my teachings, to help build student's knowledge which in turn enables them to perform more accurate diagnostics of drive train noise/failures.
So, here's a video I put together showing how to fully disassemble a Constant Velocity joint, inspect the various components for wear and damage. Its by no means obvious how these units come apart and are often assembled incorrectly too.
The fitting of the new steel securing bands is also included.
I haven't seen many videos on YouTube covering this detail so felt it would be useful not only to those studying automotive repair but for the wide audience too.
Any questions then just add them below in the comments and I'll do my best to help.