If you assemble the inner spider so that the wide parts match with the wide parts of the outer spider =>
Then you will find that the joint is rigid – it is locked into one position.
It will be so stiff that you might think it has been friction welded into place. Trying to knock out the inner spider part does not work. The secret to dis-assembly is to push out the centre ring cage – push it through the joint and then twist the inner spider round and pop out the ball bearings.
Correct assembly is when the thin parts are aligned with the thick parts
An alternative way of considering the assembly is that where there are a pair of converging tracks in the outer spider part of the assembly, they need to mesh with a diverging pair of tracks on the inner spider. Look at the pictures above to see what I mean (in previous post).
To assemble the bearing assembly / synchro coat the (middle) bearing cage with grease and slide in the inner spider.
