What he said. I really couldn't tell you exactly where it came from. I bought it off a buddy who just had it rebuilt. It was one of the first things I replaced on the wagon as it had a sloppy 4 spd when I bought it. Sorry it took so long to respond, a PM might have been faster. I hope you and that wagon are doing well.
here is a link to where I bought the rebuild kit for my current trans, although I think they might be sold out. You might be able to get part# from it or the website.
On a side note Anybody know what size plug I need for the tailshaft?