Hyperformance & K&B propshaft compatibility

[Ub Hauled]

So, I have this Hyperformance lower leg, the Bullet Drive to me more precise and a K&B proshaft.
I started to mess around on my tunnel to see what works and what needs replacement for this project and I tighten the propshaft in place just to notice that the shaft will not spin when the assembly is screwed all the way in, there is a gap of about 1mm that needs to be left in order to allow spinning and some room for compression.
Does anyone else have the same problem (or similar) and what kinda solution was found...
Thanks,
Ub

[Ub Hauled]

Nobody can relate to this? Any suggestions?!

[properchopper]

A washer spacer could solve this ; bring it to the lake tomorrow & we'll have a look-see

[Ub Hauled]

Problem solved Tony, I found something to get the necessary gap done.