YA Wheel with a MI marking - Team Camaro Tech
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post #1 of 3 (permalink) Old Apr 19th, 09, 08:36 AM Thread Starter
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YA Wheel with a MI marking

I have two YA wheels that I am trying to de-code. To the left of the valve stem hole there is a MI with a "9" underneath and then a "1". To the right of the valve stem hole is a "1" then a "16" and the YA stamping. Is the MI a manufacturer other than Kelsey Hayes or does represent the Romulus MI plant that is usually designated with a 1? Is the date January 16, 1969?

Thanks,

Last edited by AJL69; Apr 19th, 09 at 12:10 PM.
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post #2 of 3 (permalink) Old Apr 19th, 09, 01:35 PM
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Re: YA Wheel with a MI marking

Quote:
Originally Posted by AJL69 View Post
I have two YA wheels that I am trying to de-code. To the left of the valve stem hole there is a MI with a "9" underneath and then a "1". To the right of the valve stem hole is a "1" then a "16" and the YA stamping. Is the MI a manufacturer other than Kelsey Hayes or does represent the Romulus MI plant that is usually designated with a 1? Is the date January 16, 1969?

Thanks,
M1
9

represents the Motor Wheel plant, 1969. 1 16 is for January 16th. YA is a 14x7 ralley wheel used on Nova, Chevelle and Camaro. YA wheels were produced from Nov 4,1968 thru July 17, 1969. Look for a M1 stamp on the center near the lug stud holes and in the drop center of the area the tire would normally cover. MW is Motor Wheel, KH is Kelsey Hayes. NT would be Norris Technologies, used mostly on west coast cars. The letter C near the stud holes stands for Chevrolet Warren wheel plant. Kelsey Hayes produced wheels would have stamps like K-1-9 in front of the valve stem (representing a 1969 produced wheel) for instance. Sounds like you had it close with out without much help needed.

Here's a little history of the Motor Wheel plant. http://www.mwlofts.com/residential/m...el/history.php

Jon N

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post #3 of 3 (permalink) Old Apr 20th, 09, 05:56 AM Thread Starter
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Re: YA Wheel with a MI marking

Thank you for the information, it is really appreciated. The Colvin book does not reference Motor Wheel. Should I be looking for the letters "MW" somewhere on the wheel or does just the M1 indicate Motor Wheel as the supplier.
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