I finally got around to scanning the Baumann shift kit instructions for an early Gen1 4R70W...
http://ImageEvent.com/driller/baumannshiftkit
This kit came with both early and late model valvebody gaskets, drill bits, 1-2 accumulator parts and assorted valve body parts(springs, spacers, etc...). At the advice of Baumann Engineering I replaced the pressure regulator valve with an upgraded part. I also elected at the time to upgrade the 2-3 accumulator since the valvebody would be removed.
You can compare the shift kit to the J-Mod found here...
http://www.tccoa.com/articles/tranny/index.html
http://ImageEvent.com/driller/baumannshiftkit
This kit came with both early and late model valvebody gaskets, drill bits, 1-2 accumulator parts and assorted valve body parts(springs, spacers, etc...). At the advice of Baumann Engineering I replaced the pressure regulator valve with an upgraded part. I also elected at the time to upgrade the 2-3 accumulator since the valvebody would be removed.
You can compare the shift kit to the J-Mod found here...
http://www.tccoa.com/articles/tranny/index.html