Help with differential casting date
03-23-2017, 02:16 PM
#1
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Help with differential casting date
I have several photos of my 69 corvette's differential housing casting date number attached. It is the original housing. Can anyone help me determine what it says and what the coding means? Thanks for any help you can provide.
03-23-2017, 03:02 PM
#2
Team Owner
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I don't believe that's a date. It's likely to be the mold number used for the casting.
03-23-2017, 03:10 PM
#3
Race Director
The casting date is usually found on the same side of the differential, but farther back on a flat spot on the side of the housing, just a little below the left stub axle.
03-23-2017, 04:34 PM
#4
Race Director
Alan, I don't even know why the rest of us even bother answering questions anymore, we all know that sooner or later you'll answer, and include the appropriate photos. 
03-23-2017, 05:06 PM
#5
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Hi GB,
In a reply of a couple of days ago I pointed out that "you know stuff", that's why!!!!
I just take the easy ones!
Regards,
Alan
In a reply of a couple of days ago I pointed out that "you know stuff", that's why!!!!
I just take the easy ones!
Regards,
Alan
03-23-2017, 05:17 PM
#6
Melting Slicks
From an old Corvette Restorer Magazine, at least on the engine block, 2 flat head screws meant produced on the 1st shift, one flat and one round 2nd shift, and 2 round head was 3rd shift. Perhaps that was standard for other parts?