hi, basically im in the process of fitting an mtx75 box out of a 1.8 si zetec 130ps cabriolet escort. It is the same gearbox as a rs2000.

trying to sort a clutch for it has become a bit of a nightmare. Ive been looking at specs of the clutches and theres one bit i done understand.

basically, im aiming at using the 1.8 si /xr3i zetec flywheel. I was going to buy a clutch kit for the same gearbox which is

diameter 240mm
spline diameter 25.4 mm
no of splines 23


thing is, i want to use a cossie centre plate which is very very similar

diameter 240mm
spline diameter 26.0
number of splines 23



thing is, its all obvious to me apart from the spline diameter part. could someone please explain what is spline diameter?

is it possible to to fit the cossie plate?