Will 914 and VW steering wheels interchange?, Do they share the same splines? Options

[NSFW]

Would anyone know if any year/model VW has the same steering wheel/steering shaft spline as the 914—early or later model? Would the steering wheels interchange? Thanks !

[NSFW]

Helps some what but way too dark and much of there ruler markings are obscured, I can't really tell if the markings are in inches of millimeters nor where the measurements begin in relation to what's inside there.

I have the plastic collar that fits to the bottom of the steering wheel and comes up to the blinker housing. Looks like there's a shelf about 0.5 inches recessed from the leading edge, I assume that the horn contact ring/directional cancellation ring screws to this shelf.

I can see from your photo that the aluminum splined steering wheel mount is showing recessed even deeper into the plastic housing. Could you measure from the leading face of this aluminum splined mount to the edge of the plastic housing? This would give me the measurements for how much of a transition collar is necessary to to take up the aforementioned spacing between the VW wheel and the 914 blinker housing.

I want to be sure to set the adapter in the correct position before adding a collar to take up one inch spacing.

Maybe a less close up photo of the relationship between plastic collar, steering wheel base and mount would help out as well, something to show clearly the relationship between all of the components in place rather than an isolated photo or two.

I appreciate you're trying to help me out ! ! !

Thank you !