Greetings all and thanks for providing such a valuable resource here. I've been finding most of my answers but I can't find this one. As I noticed that the rear wheel bearing was the same as my front 996 part it occurred to me that other parts might match as well. I tried a 996 CV and sure enough it bolts right up to the 108mm flanges that I plan to use and the Sway-away axle slides right in. Since the 996 had 295 HP from the factory I'm assuming the power won't be an issue so if I can find the right size boots is there any reason not to use them. They are much narrower than the early 108 CVs but attractive because of availability and cost. Thoughts?

You are good to go on CV's. Find the boots you need.

The boots with different part numbers, and even vendors for the same part, have different ID. For example:
Stoddard
* 901-332-293-10 53 MM
* 901-332-293-11 51 MM
* 901-332-293-12 56 MM

Rein rubber boot part is about 5mm smaller opening (48 mm) on the large end of the boots compared to what I took off our car, despite it being associated with 901-332-293-11

What's the part number for that 996 CV?