[6pack] self-shifting problem

[Jim Jones]

Hello all:
 
Although I am no longer an owner, I would like to provide help to the buyer of
my car. The problem is as described by the new owner: "It shifts fine except
when you are in 1st gear and decelerate ( let off the gas, while in 1st gear )
and then it consistently pops out of gear."
 
The car was driving fine until the day it was loaded up in tractor trailer for
a long trip from Missouri to Carmel, CA. While this is technically not my
problem any longer, I feel obligated to help the new owner. It's my theory
that the car was left in gear after loading and that it may not have been
secured properly, thereby allowing it to rock forward and backward, putting
stress on the gearbox. Is this plausible?
 
In any case what are we looking at to fix this issue? The clutch is good, the
O/D was rebuilt by Quantum Mechanics after I bought the car. I need some
guidance for the new owner.
 
Thanks,
Jim Jones