Dan,
You could probably mount the 944 caliper but the thickness of the rotor needs to be 24mm (Rear calipers) or 28mm (front calipers).
Both front and rear calipers are identical except for the rotor thickness.
To fit the 944 rotors, you'd need a 944 rear hub. I think the splines on the stub axle are the same as IRS but someone will have to confirm that. For the ebrake, you may be able to adapt a small parking brake caliper (Wilwood).
If you were to use your current rotors, I think they'd be too thin .. the pistons in the 944 caliper might overextend.
Hope this help a bit.
Sandeep
|