I posted some of this before but I need to decide what I'm doing and do
it.

I have a 7 year old Mofocco rebuild manual transmission in a 1984
Vangon.
It just started popping out of 4th gear.  Can go about a  mile and it
wants to
pop out if I accelerate a little or vary speed.

So should I take it to a tranmission shop locally?  (They probably
don't know
about the 3/4 slider gear problem and would put factory parts in?)

Or should I order a remanufactured one from who?

I know Bus Depot carries them.
FastGerman has them?
Just Vee Dubs etc.

Who is the best?  I have a new Boston 2.1 in this Van so
the cost isn't the biggest issue.   I'd like the strongest rebuild
possible.

Thanks.
John.