are late 944 hubs the same as the early ones
 

and do they fit a type 1 arm?
where can i buy - just the rear caliper mount
if this does fit together do i then need 86 only discs?

thank - you pleez :laugh:

No, the hubs are not the same.
You'll just have to search around for the mounts (eBay, yards, etc.).
I'd have to know your set up to answer the last question.*

*if you refer to the rear turbo discs, then yes '86 only