944 CV bolt to 71 911 stub axle? Options

[Wes V]

Without worring about axles or attaching to the transmission, the question is;

If I install 71 911 hubs and stub axles on my 914, can I bolt the 944 CV unit to the stub axle?

Wes

[John]

I ran into a similar situation with early 911 stub axles. Some of the early stub axles used a larger CV joint. I believe that there were 100mm and 110 mm (110 being the larger one).

The 911 CV joints (1973-1984) are the smaller version (like the 944 ones).

One difference between the 944 and 911 CV joints is the internal splines. Some 944 CV joints can fit the splines on 914-4 axle shafts (the shafts must be turned down to allow the wider CV joint splines). The 911 CV joints have the same splines as the 914-6 axle shafts (the axle shafts must be turned down to allow the wider CV joint splines).

In either of these cases, the trans output flange and the stub axle must match the CV joint that you want to use regardless of which ones you end up using.

I prefer the 914-6 axles and the 911 CV joints.

If you really want to do this, the real easy thing to do would be to buy later 911 axles since the stub is part of the outer CV joint. You will still have to adapt the inner CV joint to whatever trans flange you end up with.

While all these parts are available, some are more difficult to obtain. (the coarse splined trans output flanges come to mind)


Good luck with your project.



P.S. :

I'm using 1973 911 rear hubs, 911 (73-84) CV joints, 914-6 axle shafts (turned on both ends) and coarse splined 915 trans output flanges (year unknown) on my 901 transmission.