Hi Dan

The feedback from GKN was up to 14.6mm was possible, I thought that was huge but thats what they said.

Heres the info they sent me.
Shaft, 514mm x 28mm, 28 spline? (oder 25mm diameter)

1 Stück Profilwelle 300M (S155) L1=514mm @ 1.568,-- Euro/Stück incl Vat.

4 Stück Profilwelle 300M (S155) L1=514mm @ 549,-- Euro/Stück incl Vat.



Shaft, 473mm x 28mm, 28 spline

1 Stück Profilwelle 300M (S155) L1=473mm @ 1.529,-- Euro/Stück incl Vat.

4 Stück Profilwelle 300M (S155) L1=473mm @ 517,-- Euro/Stück incl Vat.