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Keith Seymore · 03-12-2014, 09:28 AM

Yes - typically they are codes for the ratio, locking vs open, and the manufacturing date code.

Unfortunately I do not have a secret decoder ring so I can't interpret it. I suspect someone on this site does.

K

03-12-2014, 09:28 AM	#3
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,490	Re: Do these numbers mean anything? Yes - typically they are codes for the ratio, locking vs open, and the manufacturing date code. Unfortunately I do not have a secret decoder ring so I can't interpret it. I suspect someone on this site does. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/