Earliest 3969341 and Latest 3894860 axles

[56Chevynut]

Just saw this post after being pointed to it.  Don't know if this is still needed but here it is. I can't figure out how to post a pic from my computer....

69 Z/28 X33D80
Official NCRS build date August 19, 1969
Rear axle codes and casting numbers.
C BU 0815G1 E
3969341 NF  date code G 23 9  July 23, 1969

[bcmiller]

Thanks for posting. Did you also post a pic of your axle stamping on Facebook and did you have a snapped off fill plug?

[KurtS]

I believe this is the picture.

[bcmiller]

Yes that is it.