A used transmission can still have value as a reusable part or as a source of scrap metal, even if it's no longer used in its original vehicle. Here are the main options for repurposing a used car or truck transmission.
Sell as a Used Auto Part
If the transmission is in good condition, it may be possible to sell it as a used auto part. There are a variety of channels for selling used auto parts, including online marketplaces, local auto parts stores, and specialty auto parts recyclers.