Lockup to non-lockup question(s)

1WildRT said

I built a little fancier control on my 46RH conversion so it automatically unlocks the convertor & downshifts... But my understanding is the governor will still cause the trans to downshift from forth to second & when it goes into second it should unlock the convertor.... Is that not actually the case?

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It's not the case in an RH42 using simple switches. If I forget the lock-up it stalls the motor at idle.

4spdragtop said

Thanks guys, as I mentioned zero transmission knowledge other than a pan drop and filter change lol, sooo do all lockup trans have OD?

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No - the 4speed OD automatics have a 4th gear housing that is where the simple tailhousing on a 904 or 727. They require serious surgery of the torsion bar/trans cross member loop and a much heavier trans crosmember, shorter driveshaft etc. ODs are easily recognized with a DEEP trans pan since the valve body hangs out of the bottom of the trans.

I just mentioned it because the OD manual switch part would be the same.