Does anyone know a simple place to find two sizes?

Basically i want to know how far the pinion face (prop shaft bolt too bit) is away from the centreline of the drive shafts on a ford escort timken axle and the same value on a ford sierra. I'm hoping they're either the same or the escort is up to 1" longer.

Ive got a ezzy one in the garage will measure tomorow .m.

cheers - If anyone could measure a sierra (from the bit the prop attaches onto to the centre line between the two drive shafts that would be appreciated.