i'm fitting a focus rs box into my mk2 fiesta and i thought all mtx shafts would be the same, apparently not as i got some out of a focus on a y plate and the splines are too small for the diff.
i don't really want to get FRS shafts as these go for silly money and i'll only use them for the inner cv's and intermediate shaft as i'll need those parts for custom shafts being made or sleeved ones.
any help appreciated.

sean