I'm convinced now of the 3/4 slider. Thanks to those who knew right off
the bat, and thanks to those who held out hope for something cheaper. I
appreciate it.

I took the van around the block and made sure the final bit of the trip
occurred downhill. Sure enough it stuck in 4th... I coasted the rest of
the way and into the parking space. When I did, the van rolled back a
tad while I reached for the brake. After rolling backwards it shifted
into 3rd just fine. That yells transmission to me, so I'm checking
around for the best labor prices around here.

My question though is this... used or rebuild? And are there any "new"
transmissions for these things anymore? My dilemma isn't new I'm sure.
My van has a rebuilt 1.9l plus everything else important. And that
makes me really want a rebuilt transmission, then maybe the thing can
be on the road for another 20 years! (doubtful but hey) But cost of
rebuild is a good bit more than just a swap. I think I can find a used
transmission for about the cost of the 3/4 slider alone and the labor
for swapping the tranny is currently around $400 at my local shop.

Any thoughts? I know I won't have my van forever, but I do have a lot
more I want to do it and haven't had the chance to yet. Cross country
trips, lots of camping, and more. You know what I mean.

Many thanks,
Chris in Nashville
85 GL (currently limping)