In a message dated 98-07-10 13:37:44 EDT, Susan wrote

<< he said that if, while in 4th gear, he eased  up on the
gas and then applied gas again, it'd pop out of 4th >>

Ask him if he replaced the 3rd/4th clutch hub and operating
sleeve assembly.  If it is not an external linkage problem
then I would suspect that he reused the old assembly.  This
sounds like the clutch hub is flexing due to cracks and after
the inital load is taken off 4th it moves somewhat.  When the
load is reapplied then the engagement between the slider
and the gear teeth are out enough that it 'rolls' off and pops
the trans back into neutral.  This is one of several reasons
why I don't mess around with old hub assy. that look good
and replace them during a rebuild as standard procedure.

Todd Hill
VolksWerks Transaxles
Olympia, WA