Are these the right caddy hubcaps

Yep, those are the sought after 57 Eldo's and $400 is about what they go for

 

Guess so.....or maybe not.

 

Don't bother. Those things are useless unless you're restoring a 56 Caddy.

A set of these is what you want.

 

How do you suppose these Cad hub caps got 'separated' from the cars they belonged to?
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The set I got, one was in one barrel here, the other was in a barrel 50 yards away, the guy kept all kinds of loose pieces in old barrels and inside cars... I had a stack of hubcaps six feet tall and put together a set of five '58 Caddy caps that I found every one in a different place.

The '56 Cad caps would be good for if you were running wide wheels on the rear and wanted a deeper dished look with them, and it would be easy to change the center for a chrome bullet - you could even rig it so a bolt holds them on to one of those things GM used for their phony wire wheel caps in the 1980s/1990s - but that's about all I think.

 

They look like 60 or 61. I had a pair or 55 caddy caps on my 53 buick( album). Gotta watch out for those caddy caps cuz they do run deep and unless u have a caddy rim... it can be a no go.

 

The '56 Caddy caps are what I used to run on my 6-lug GM 15x8 truck rally wheels.....grind the rear rib, pop out the center & you have a neat trim ring.