Transmission and tuning.

[OBS-Diesel]

Emailed Bill with no response so I figured I would try here. I have a dumb question. I recently bought a truck and the PO had the E4OD rebuilt by a local transmission shop. He had an upgraded transmission cooler added, billet torque converter, and supposedly some valve body work done. I think I should run custom tunes (I plan on getting the Phoenix). Should I contact the shop that did the work and find out EXACTLY what they did or is this enough information for you? If I need to ask them questions what do I need to find out for you? I plan on ordering my chip this week so hopefully we can get this worked out. Thanks a lot for any help you can give me.

Tim