A855 - 5 Speed

The popping out of gear issue, I think Jamie revised the shifter forks to solve that problem. You might have the older ones. Call him tomorrow. ;)

Older based on what date?

Mine was tested 10/2017, received 5/2018.

It appears most, like me, have it for a while before installing, so knowing a cutoff date would help many I'm sure.

Also, those with the trans, did you receive the instructions stating to use 75W140?