[Chadworkz]

Yea, Constant Velocity Joint CVDs use a barrel, pin, & set-screw...while Universal Joint CVDs use an actual universal-joint, which is a "+" shaped joint made up of a center-section and two cross-pins.

The term "CVD" is commonly used for both types, and they both perform the same job, one just does it better and more efficiently than the other, like was said above.

Constant Velocity Driveshaft type CVDs are best used as wheel-axles since they have to go through various angle changes and multiple axis changes, while Universal Joint type CVDs are best used as center driveshafts since they don't move at all.