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custom63 · 03-20-2009, 01:56 AM

Pulled the cover on my rear diff to see what ratio I have and here is what is stamped on it. 3817778 11 41GM 9 63 1 27. Can someone help me figure out what all those numbers are telling me?

03-20-2009, 01:56 AM	#19
custom63 Registered User Join Date: Oct 2008 Location: Auburn, Ca. Posts: 171	Re: My 1963 Build Thread Pulled the cover on my rear diff to see what ratio I have and here is what is stamped on it. 3817778 11 41GM 9 63 1 27. Can someone help me figure out what all those numbers are telling me? Attached Images