[yetibone]

The 914 CV flanges are the same size as a Beetle's, except the 914 flanges had 4 bolt holes, and two dowel holes. On my car I used the 914 flanges with the dowel holes drilled through, and threaded inserts screwed into the holes.

The power necessary to trash a 930 CV joint would certainly break the 914/901's intermediate plate instantly, so those CVs' aren't really needed.

If you use stock IRS Beetle trailing arms, with the stock stub-axles, then you should use the stock IRS Beetle axles, and their CVs'.

If you use Porsche stub axles in the Beetle, or early 944 steel trailing arms, you should use the stock Beetle CVs' on the inside, and early 944 CVs' on the outside of stock IRS Beetle axles.

If you use Porsche alloy trailing arms (wide or narrow), use the late 944S (after '86) *NON TURBO* axles with Beetle CVs' on the inside, and non-turbo 944 CVs' on the outside.


*944 Turbo axles had a coarser axle spline pattern than the non-turbo axles. The non-turbo axles have the same spline pattern as an IRS Beetle.