How do you check gearbox Ford Transit t300 van?

To check the gearbox on a Ford Transit T300 van, start by ensuring the vehicle is on a level surface. With the engine running and the transmission in park or neutral, check the Transmission Fluid level using the dipstick; it should be within the marked range. Additionally, inspect the fluid condition for any signs of contamination or burnt smell, and listen for any unusual noises while shifting through the gears. If any issues are detected, it may be necessary to consult a professional mechanic for further diagnosis.