please refresh my weak memory.... what are the differences between these automaitc trannies?

i have a bad tranny in my 300cd (turbo) and i have two trannies out of 240s lying about.

i see i typoed in the title. that should say 240d.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.