Not a burning mystery, just wondering if anyone has noticed these stamped numbers on the steering shaft and what they might signify?

1st pic is off the 77 280Z, 2nd and 3rd pics are off  two different 72 240Z's,

Does anyone know where to get that u-joint?  26th's shaft says 4M.

14 minutes ago, 26th-Z said:

Does anyone know where to get that u-joint?  26th's shaft says 4M.

I used the Kawasaki u joint

Posts #76 and an issue with the joint in #176

 

Yep, yep.  That's what I'm looking for.  I found a proper size u-joint in England, however you say Kawasaki.  What part #?  I saw your post and pictures after the die grinder.

I am locked out of my Amazon account currently so I can't totally confirm this, but I believe this is the one I bought. Judging by the one review

https://www.amazon.com/Motor-Master-Universal-Joint-ATV700/dp/B000GZRASO

Hi Chris and Charles,

My good buddy @Dr. 240Z gave me two U-Joints. They say:

• MFG: Kawasaki 
• Part: 578234
• Ref: ATV700

I hope this helps!

2 hours ago, 240260280 said:

Hi Chris and Charles,

My good buddy @Dr. 240Z gave me two U-Joints. They say:

• MFG: Kawasaki 
• Part: 578234
• Ref: ATV700

I hope this helps!

I think that is the way I found the Amazon part!

On 8/6/2018 at 7:01 PM, grannyknot said:

Not a burning mystery, just wondering if anyone has noticed these stamped numbers on the steering shaft and what they might signify?

So I guess the answer is no?

Many thanks for the part number.  I'll give it a try.

I don't know what the steering shaft numbers mean.  Notice how the u-joint from shaft 194 is peened in place? The u-joints from my early steering shafts are not peened.  I hve a later shaft from a '72 that has the peened fitting.

3 hours ago, grannyknot said:

So I guess the answer is no?

I don't even have a theory on the numbers. Not a part number, not a test number. Code for a date, but the third picture isn't four digits???

PS:Sorry for the thread jack

It's obviously making the data fit the theory, but if forced, I could still believe they are date codes... Reversing the numbers and reading from bottom to top:

7047 could be 7/4/77

6212 could be 6/21/72

491 could be 4/9/71

Like I said, probably making the data fit a theory, but that's all I got.  

8 hours ago, Captain Obvious said:

7047 could be 7/4/77

6212 could be 6/21/72

491 could be 4/9/71

By George, I think he's got it.