1999 Suzuki Carry (DB52T) stuck in 5th gear

[fallon]

Couldn't find any info in a search.
Friend used my Carry at the hunting camp. When he parked it, it started to roll because it was in neutral. So he just shoved it into gear which happened to be 5th.
Now it is stuck in gear. Lots of effort will pull it out of gear but when you let the clutch out there is a grinding noise as though it was trying to engage reverse but wouldn't go all the way in.
Shifter is very springy when trying to shift.
I am guessing a considerable amount of force was used when shoving it into gear and maybe the shift fork is bent/broken.
Any hints on how to procede, any pictures or illustrations of what I will encounter when I open it up?

I am trying to do some research while my blood pressure returns to normal. This was a flawless, sweet running truck until I loaned it out and I am really angry at my stupidity.

[fallon]

Issue with transmission is fixed.

The first thing I did was to purchase a good used transmission to get the truck up and running again.
The price was way more than I had hoped but it was a good trans so I am comfortable with the purchase.

Then I tackled the broken trans. I ordered the parts book available in English from LULU.com.
It is basically a illustrated parts breakdown with no assembly instructions. That would have helped a lot but from taking a close look at the assembly drawings, it is obvious that the transmission is built in segments.

None of the disassembly required unstacking gears, shims, snap rings, or anything else.
There are some balls and springs that act as detents that popped out unexpectedly but the drawings show where and how they fit so reassembly was pretty easy.

My issue with the trans was that it was stuck in 5th gear. When I got the trans apart, it was easy to see that the shift fork had been forced into overtravel. The syncro hub slider was shoved so far that the hub could not return to the neutral position. There are three little spring loaded blocks situated around the syncro hub that act as detents. When the hub is forced too far, the blocks can pop out of position. A small screwdriver popped them back into place, trans reassembled and it shifts fine.
Got to check the shifter to make sure the lever and cable have a stop so this can't happen again.
But what the heck, I now have a spare trans.

[fupabox]

Nice job on finding the issue....can't imagine the amount of force he used to hammer the truck into gear ..parking brake isn't that tough to pull