Trailblazer

I’ve got a Kubota RTV 1100c and was told that I have to get a new tranny. It wouldn’t get out of its own way. I adjusted the fuel intake, changed hydraulic fluid and filter. Took it to stealer dealer and they tried to adjust the pressure but it didn’t help. They want $10,000 to install a new transmission. I’m trying to find a bone yard that might have a used one. Any help would be appreciated!!