the front of the transmission leaks fluid. leaks mainly when truck is turned on.
transmission leaking on 2003 Ford F-250 Super Duty
If the front of the transmission leaks oil and the oil is red in color it is most likely the torque converter seal at the front of the transmission that is leaking, if so the transmission must be removed to replace it. Make sure it is not the engine rear main seal or any other engine related oil leak that is responsible.