Probably because a transmission rebuild costs anywhere from $2-3k. If it's an older van, likely more than it's worth.
Cruise craigslist, and the lists for nearby cities or bordering states. Sure you can find something, craigslist has everything. You could probably find a robotic tap dancing Jesus if you looked long enough.
Could you be a bit more specific on how much and exactly what you're looking for? Went to look for a van in your state. There is a butt load of them. Some don't appear too pricey in 'wording'. Course everyone on CL is upright.:th_butt:
I am looking to spend up to $3000 or so.. i really would like to stay with the ford e250/350 my van is just rusted out the drivers floor is gone plus a few other spots. its done for. I have been looking on CL anyone in that price range and with under 200k miles isn't responding to my emails. Going nuts not working!
Local junkyards should have a replacement for cheap. Depending on your skill level and the availability of place to do it, transmissions aren't too bad to change with some common tools and a pair of hydraulic floor jacks.