A855 - 5 Speed

67autocross said
once these 5 speeds start breaking (and they will) in a few years

A few years?
I drove it out of my driveway and down my street and it popped out of 4th.

I need to find the time to research other 5 speeds, cost, modifications required, etc.

I'm considering swapping my 4 speed back in, but it's a 23 spline and I already put in a new flywheel and 18 spline clutch.