Could someone tell me what these stampings mean?

[dude69300]

I have two 15” steel rims that have numbers and letters stamped on them. Could someone tell me what they mean? K2/4, 4, M, and then F. Thanks

 

[69CoronetRT]

Plant year and specs stamping.

presuming from previous experience.....

K2. Kelsey Hayes plant 2
4 calendar year 64? 74?

April date code?

M and F .....don’t know. Likely wheel width designation or load rating.

Are there more markings inside of the rim?

 

[CBODY67]

For "M" and "F", possibly inspection stamps for various parameters, where a normal paint daub would not do? "Stamps" rather than daubs, considering the somewhat temporary nature of paint and the high importance of wheels to vehicle safety?

Just some thoughts,
CBODY67

 

[Snotty]

You can climb K2 on April 4, as long as it is either a Monday or a Friday.

 

[69CoronetRT]

I forgot I had this. It might help someone in the future....

 

[dude69300]

Plant year and specs stamping.

presuming from previous experience.....

K2. Kelsey Hayes plant 2
4 calendar year 64? 74?

April date code?

M and F .....don’t know. Likely wheel width designation or load rating.

Are there more markings inside of the rim?

Thanks for the replies 69coronetRT and CBODY67, these tires and rims came off my ‘74 dodge club cab I had a long time ago. They were the summer tires for the truck so they are in excellent condition, if I cleaned them they would probably still look like new.
I didn’t see any other markings on the rim, but they still have the Goodyear extra load tires on them, so I was wondering if the rim stampings would tell me if the rims were HD also,

 

[dude69300]

View attachment 419828 View attachment 419829 View attachment 419830 This got me thinking of the truck so I dug out a few pics. In these photos I had installed some aftermarket rims and tires on it. This truck was one of the most dependable and enjoyable vehicles I’ve owned