Shawn,

You went MIA on us. I'm alive and kicking...

No sure where you live(country wise?). I use the R/O/C/K-A/U/t/o rebuild kits, or you can peachparts kits...

Kickdown is pressed in. I did not touch it too...I replaced the B2 piston.. Use the epc diagrams for Mercedes. Do your main seal, but on the M104 you will need to replace the bracket and bolts, and rear seal.. (it has been updated). You should replace the pump bushings. If torque converter shaft is scared, replace it. BUy a CVC torque converter. They are under $200.. Buy new K1, K2, B1 pistons from Mercedes-The link is in one of the links.

Torque Converters Distributors Page - Consolidated Vehicle Converters, Remanufacturing Torque Converters for Automatic Transmissions

Martin