944 Turbo rear brakes

[vwdave]

Hi guys,
Has anyone used the early (83-85) 944 N/A rear backing plates/ hub/ stub axle/ handbrake assembly with an '86 Turbo rear disc. I have some brembos from a 944 S2 and want to mount them on the rear with as small a track increase as possible. Do the '86 Turbo aluminium arms increase track (+26mm per side) the same amount as the early 944 N/A setup??

Any help and advice is greatly appreciated. Thanks

Dave