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1969 GMC · 02-27-2006, 01:24 AM

There may be, but it is not at all as well documented as Chevy engines.
EDIT: both of my Eaton 3rd members had the pinion and ring gear tooth counts stamped into them, and it looks like it was done by hand. I couldn't see any markings on the one that came factory with the locker.

It is an open diff, I can see spider gears in the 2nd pic.

02-27-2006, 01:24 AM	#5
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Re: The 9,999,999th Eaton ID Question... There may be, but it is not at all as well documented as Chevy engines. EDIT: both of my Eaton 3rd members had the pinion and ring gear tooth counts stamped into them, and it looks like it was done by hand. I couldn't see any markings on the one that came factory with the locker. It is an open diff, I can see spider gears in the 2nd pic. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650 Last edited by 1969 GMC; 02-27-2006 at 01:25 AM.