Packard Forum Index » V-8 (1955-56)

Quick update. I was able to buy a complete rebuilt unit from Pgh Ultramatic. So there will be no microcontroller project from me this time around. Thanks William, and everyone else who helped me out with this!
John

Good to hear. Hopefully your pressure switch is still present on the transmission and is working along with the relays because all those are unique to the PB operation and things you probably won't easily find except here in the US.

I got a new pressure switch, and I’ll have to look into the relays when I get back. I have family traveling in May, so getting relays later should be ok.

Quote:

Howard, it’s my understanding that the entire relay set can be replaced by a number of standard SPDT relays. I advised John accordingly if he has problems or missing relays, at least to get the system working. Of course the relays on his car will probably need to have the contacts and terminals cleaned to ensure reliable operation anyway. As with any older relay.

I did sell him a new pressure switch along with the unit, and advised to pick up some pipe fittings for it.

Spud,

The shift relay would need some figuring out if using after makey relays

Parking relay no problem with after market, I'm using one.

A good ground is a must..