Has anyone tried to take a dual master, such as from a Chevy, and stick it on the Packard TV?

https://www.classicindustries.com/product/all-years/chevrolet/belair/parts/PB10719.html

The most trivial reason to change polarity is to accommodate a solid state radio vibrator. I note that since, aside from my alternator, that's the only thing keeping my 400 as negative ground (originally positive).

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Haha, thankfully no. Still a pint over from the last oil change, at a shop where apparently adding the right amount of oil was too difficult. In line with the other services I received... so now I do much more myself 😅

That ebay gasket looks to be correct.

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True but the way the starter field coils and armature are internally connected if a change in polarity occurs both items also change at the same time so the magnetic relationship and rotation direction stays the same. Generators and ammeters do care as they typically need repolarizing and reversing connections on the ammeter before they will charge or read properly after a polarity swap. Regulators are another item that might care and coils work better with a change of connections to match polarity but will still work if left alone.

As a point of information as evidenced by all the accidental or sometimes on purpose changing of pre 56 cars to negative ground to accommodate modern radios or cell phones, starters and other electric motors Packard used as an original part do not care about polarity.

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Yep, I saw that. It’s called Thermocure. That’s what I’m going to try.

My cents

Solenoid finger.. and contacts


Other.... starter brushes.


All repairable.

Napa has Solenoids. S100

EBay they. Pop up.

As well as repair kits.

And you can take to have it rebuilt.

The whole starter

'55 was + grd. and '56 was - grd.

If it not leaking oil, you make be low on oil! :)

Evaporust makes a specific radiator product now. Not sure how it differs from their normal product.