Is there a 5 speed transmission that fits in ford f250?

No, Ford F-250 trucks, especially newer models, did not come with 5-speed manual transmissions. The F-250 typically used heavier-duty transmissions with more gears, such as 6-speed manuals or various automatic transmissions with more than 5 speeds. While you might *theoretically* find a way to adapt a 5-speed from another vehicle, it would be a massive undertaking, likely requiring custom fabrication and modifications, and wouldn't be a straightforward bolt-in swap. It's not practical or recommended.