Anyone tell me what these number refer to?

[Jeff]

IMG_6382.jpeg (252.46 KiB) Viewed 3063 times

IMG_6383.jpeg (252.18 KiB) Viewed 3063 times

[Stu]

3766077 are Police package wheels, apparently. 15 x 7, big bolt pattern.

[Stu]

Looks like the MI bit is a batch / casting code.

[Stu]

Right, strap in… more digging reveals…

MI is the plant. In this case the Motor Wheels Plant. Specifically Michigan.

The 8 is a day and the 10 is a month stamp, so 8th October. That’s the easy bit.

The dot looks like it’s a decade marker. Apparently, Chrysler used a dot system to denote different decades on some mouldings, so a single dot could mean 70 something or 80 something. On these it is more likely 80s, by the looks of it. 70s would make them early prototype.

So you’ve got cop package wheels, made in Michigan on the 8th October, either 71 or 81 by the looks of it.