With the early 911's, our beloved 108mm 4 bolt CV's are NLA. The solution is to get a complete axle assembly and simply bolt it in. Most shops won't even replace CV's these days. Replacing the entire axle assembly is cheaper and easier (based upon time).
***Unit - One. You will need one per side.***
***ALSO... Make sure you order two gaskets per axles assembly. These assemblies are drop shipped from a local supplier to help save shipping and carbon emissions. They DO NOT come standard with the paper gaskets.***