944 n/a hubs on 412 spindles..project

[Wally]

Since I wanted to use vented disks up front too, I am going to try to adapt 944 (n/a, early) front hubs so a type 1 bearing can be used for an inner bearing and a spacer bushing will be used for the outer (944) bearing as the 412 spindle is a litte smaller in diameter and not the same as a type 1 spindle. It does use the same type 1 bearings though :)

Here is the adapter ring on top of the still original 944 hub:
http://i174.photobucket.com/albums/w112/fusca03/412%20onderstel/CNCwerk006.jpg

This is after the hub was shortenend by 6,5mm and the inner part openend up for a shrink fit with the adapter piece:
http://i174.photobucket.com/albums/w112/fusca03/412%20onderstel/Naven944001.jpg

After heating the hub in the oven and putting the adapter ring in the freezer, it fell right in :)
http://i174.photobucket.com/albums/w112/fusca03/412%20onderstel/Naven944002.jpg

Next job is to install the wheel bearings and try it out on a spare 412 spindle...

[Wally]

Well, the 944 hub fits nicely, but could have used a little more room on the nose for the retaining screw/clamp and washer. I might had better shortenend it by about 10mm I think now, but its work this way as well :)

Tried the 944 caliper, but its too close for proper fitment:
(pity, as the bolt hole spacing of both calipers is exactly the same...)

http://i174.photobucket.com/albums/w112/fusca03/412%20onderstel/Wielnaven944naar412001.jpg

This also leaves open some other disk and caliper options hehe..
To be continued.

[wrenchnride247]

Wally...you got too much time on your hands. Great job though! :D

[Chris Percival]

I did something very similar, but to fit 1303 hubs...
http://www.fastbug.net/node/219

[Steve C]

Hi Wally

Nice work. This is what I did to adapt Porsche callipers to my 1302.

Steve

http://www.clubvw.org.au/images/pb5.jpg