Inspection of a 904 torqueflite

Unfortunately, I don't know much about transmissions, the short time I worked in a trans shop, I was only a grunt, limited to doing the R&R work and a few clutch jobs, I wanted to learn to build them, but boss said he had no need of another builder at that time. I did get to know one of the builders well, and when he opened his own shop I hung around there frequently, hoping for a job, but he was never busy enough to need another employee. I did learn a few things from watching him, and one that I remember is that the steels are extremely durable, as long as there are no hot spots or blue areas, a light sanding to rough them up is generally all that is necessary. Excess heat is the main cause of transmission failure, and if you had a leaking seal for and extended period, fluid was probably low on a regular basis, which leads to heat build up and wear on parts. Absolute must when reassembling the trans is CLEAN! Everything must be clean enough to eat off of. Any contaminants in the case will cause premature wear and failure.