RE: 1951 Packard 200
I need to replace my keyed trunk lock. Don't need bottom striker or trunk latch assembly. Only need the lock the trunk key goes into. I would appreciate any help.
Regards
Steve

I have some unidentified locks in my shop and I did part out a 1951 and 1952 so it’s possible they came from these. Do you have photos of your old one?

Thanks Don,
I'll pop it out and post pix's in a few hours.
Steve

Parts book says bare lock cylinder is the same from 48-52 so more years might open up more possibilities in finding one.

There is a different number for 53 and later. I don't know if the actual cylinder changed as far as size or the end casting that fits in the mechanism but they did make a change to the way new replacement cylinders were fitted to the original key. Old way required new pins to be inserted in the cylinder to match the bumps on the key and new way required inserting key in the cylinder and then filing down pins already in the cylinder to match the key. Since the new and easier keying method required the pins be in the cylinder instead of empty holes that might be the only difference and why there was a new number.

Packards1 has a 53 trunk cylinder on ebay and you might compare to yours to see if the end that works the mechanism looks the same and it is only the extended pins that are different. https://www.ebay.com/itm/1953-55-Packa ... 941b1a:g:RpYAAOSwo4pYW-x4

Pictures for the 51 Packard 200 trunk lock assembly

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Thanks Howard for doing my homework for me. I did an ebay search for the 51 and 52 nothing appeared. The 53 appears to be different. I'm afraid that my whole lock assembly has serious internal issues. The key inserted into the lock
grinds and freezes and may or may-not turn to unlock the lid.
the latch assembly is brand new.

I don’t have mine here as my shop is in another state but from memory, they look like those posted by Howard. However, it’s the square shaft length that confused me as they seemed rather long so what is the length on yours?

Too bad you are looking for the whole thing. Cylinders interchange over several years but the case appears to be specific to 51 and very early 52 and is probably going to limit the search. They changed the entire locking mechanism in early 52 to a stronger build and the case as well. Don't recall seeing anything where the new assy should or maybe could be retrofitted. The case is probably specific to fit into the mechanism. No idea if anything from other years could be made to fit.

Don hope this helps.....In any event someone might have one and can see what I need.

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I think that mine are longer than that but won’t know for sure until I see when when I’m next at my shop. I’m sure you will have found one by then as it’s probably late August or early September that I’ll be there. In the meantime, try Mike at Tucson Packards as they have quite a few ‘50s era cars and tons of parts.