I'm no guru when it comes to transmissions, but this is something that has been floating around in the back recesses of my mind for awhile and I thought I would ask here to see what the answer is.

I understand what a manual valve body is (and the reverse manual valve body too), it is pretty much what it states...you shift the trans through the gears manually. My question is this, when you use a manual valve body, do you still need a vacuum modulator on the trans, or does the manual valve body eliminate this?

And to add to my stupid question, is it possible to eliminate a vacuum modulator, or is it something there is no way around? Again, just learning stuff, no actual reason for my asking other than to find out how it all works together.

Only asking this out of curiousity, no other reason.

Thanks!
Mike

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