Re: Wanted - A/T vacuum Modulator 1956 Caribbean

Posted by HH56 On 2024/7/1 19:46:31

Nothing on an Ultramatic is vacuum operated. The only vacuum modulator is the advance mechanism on the distributor but the electric shift does have a pressure switch located on the side of the transmission which could be taken for a modulator. That is a completely different item so please provide a few more details as to what is happening or not working..