Yes that's right '94 on Scorpios were 4/108, it's been suggested that Ford decided to use up spare hubs after the Sierra production ended, I wouldn't be surprised - it does seem a strange choice for such a heavy car, particularly one which was a development of a car with 5 stud hubs!
I used to have a Scorpio with five stud rear wheels and four stud front wheels, because someone had fitted a LSD by replacing the entire back axle.
You know what I never noticed! Until I got a puncture.
Cheers
Chris
