A rebuild of this would be a good idea at this point, so factor that into the cost.

https://sacramento.craigslist.org/pts/d/pollock-pines-warn-overdrive/7581687907.html

“29 tooth 6 spline warn overdrive model 33v6. I do not know if it is complete. This is exactly how I got it. I was going to send it to Herm in Washington for a rebuild. I have pictures of all the parts I have. Some may not even be for it ? All gears seem to be in decent shape, some surface rust and oxidization on housing inside. I needed a 26 tooth, so this one won’t work for me. I’m willing to ship, however due to weight it’s going to be about 45-50 bucks. Text is best”