I'm using a 915/06 with a limited slip. Activation is done by cable pull style. Using a 228 Kennedy stage 1 pressure plate, Alfa Romeo 164 disc (yes they fit on 915 tranny and cost 30 €
). We reversed the 915 shift fork put a original bug throw out bearing on it and use a original bug gearbox lever. Flywheel is 228 bus with VW rabit II bearing. CV joints I'm using from a 911 SC fine spine since I use a 993 LSD. This will fit again to 944 axles. All is working nice even so I may go hydraulic like Walter over the winter.