Differential date code
Thread Starter
Pro
Joined: Aug 2005
Posts: 627
Likes: 1
From: Naperville IL
Differential date code
I'm trying to decode the date stamp on the differential in my 73 to get an idea if it's original or not. All I found in old threads was info on the earlier vettes that had an actual date stamped on the pad.
Mine says AW W130 E2. I know AW=3.08, but I can't find anything on the rest. Anyone have the decoder for this?
Mine says AW W130 E2. I know AW=3.08, but I can't find anything on the rest. Anyone have the decoder for this?
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Originally Posted by chris73cpe
Mine says AW W130 E2. I know AW=3.08, but I can't find anything on the rest. Anyone have the decoder for this?
the 130 is a Julian date and indicates the 130th day of the year. E indicates the posi-traction source of Eaton and the 2 is the shift that assembled the unit.
Racer
Joined: Dec 2004
Posts: 379
Likes: 0
From: Fairfield Texas
I believe there should be a production date cast,not stamped on the
rear end housing and rear end cover. Should be a letter,A for Jan. etc.
2 numbers for day of month and the last number for year,3for73,4for74
etc. If I am wrong someone will correct.
rear end housing and rear end cover. Should be a letter,A for Jan. etc.
2 numbers for day of month and the last number for year,3for73,4for74
etc. If I am wrong someone will correct.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Originally Posted by chris73cpe
130 works out to may 10th, which makes sense with my trim tag date of may 17th... how would I determine the year?
