I'm looking for a parts list or a check list of internals that should be replaced or upgraded. Or is all stock ok? I'm thinking of a Florida TC or a Suncoast converter if they are still available.

Part numbers or where I can buy them would be greatly appreciated. And a general ballpark idea of what it should cost to have it done.

It looks like there are kits available, and here's a pretty good video of someone tearing one down.
http://youtu.be/wIeWHqO27TA

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2005 Liberty CRD Limited
DIY Garage Remanufactured Engine with GDE Full Torque Eco Tune from mile zero.
ARP Studs
Cummins Lift Pump
Transgo HD2 Reprogramming Kit
DIY Rebuilt Tranny Pump
Suncoast Torque Converter
2nd Generation Fuel Head
Sears P1 Battery
Hot Diesel Solutions Thermostat

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U.S. Army Retired