3 door and saph are definitely different lengths. Would assume Escort is too.

Most parts catalogues will list the cable length though. Below taken from Firstline, and I think should all be disc brake models

Sierra 3dr 3380mm
Saph 3380m
Escort 06/92 to 11/92 3150mm
Escort 11/92 to 01/95 3220mm

Granada 3725mm
Scorpio's/Ultimas 3760mm or 3800mm