No vacuum control modulator on my 1978 300D transmission. This thread might help.

http://www.peachparts.com/shopforum/showthread.php?t=93606&referrerid=44341

If you can help with a firm first shift (2-3) I'd love to hear about it. I'm living with it for now as it seems to be better for the tranny than flaring. I'm sure it will hasten the wear of the flex discs but cheaper to replace than the transmission.

Kevin

1978 300D
1979 240D