Quote Originally Posted by tom4bren View Post
Not to split hairs ... but ... it's what I do.

The green cup is part of the Constant Velocity (CV) Joint. A CV joint is in reality a bearing on steroids & the green cup is the outer race.

Part of the problem with talking about CVs & half shafts is that there is so much mis-use of terminology and slang terms that it all gets very confusing.

There was a thread a couple of years ago called "CVs for dummies" that had a drawing & the correct terminology. Also, last time I checked, wikipedia had a pretty cool animated graphic of a CV joint.

I've been told that the term "half shaft" really means the entire assembly (from splined shaft entering 3rd member to splined shaft entering hub). More commonly, the half shaft seems to mean what the pros call the "center shaft" which is the solid shaft between the two green cups and includes the "star" (inner race), Ball Bearings, & Cage.
From one hair-splitter to another, thanks!

When I looked at the picture of the NAPA CV axle, it took a second, harder look to notice it didn't have the green cup and inner 3rd piece. When you look at pics on the net -- especially EMPIs at Amazon, the implication is the inner green cup and axle are included.

I went back and looked at the pics of the two CV boot swap instruction threads and finally realized that inner, green CV "cup" isn't being purchased with these CV axles. I also realized you can't tell if Amazon (or other vendors would include that or not. I assume not. Since Amazon has two options, I can't really tell what they sell (IOW, what parts of the CV axle would be present).

The CV boot swap threads also don't address pulling the outboard end from the wheel/suspension. Maybe I've yet to find the correct r/r procedure on this forum. The one just bumped to the top of VXTalk is nice for identifying the parts.