Probably got ripped off but I just paid $1200.00 to have my transmission cooling lines replaced on a 2001 F350 7.3. Can anyone tell me how many lines there are? I only see 2 but he said there are 4. The parts alone were $557.00. Is this a job I could have done myself? I could not find any threads on it( unless I searched incorrectly). I had to take a long trip and they were leaking badly so I trusted the recommendation of a friend and took it to his shop. Thanks in advance for replies.