12-Bolt Axle numbers stamping inquiry

[rpoz11]

On my 12-bolt, I have C XX 1030 G1
---------------------------->E<---------------------------

What does the "E" designate? The "E" is right under the 3 of the 1030
Thanx!

[Mr. T]

E = Eaton

[rpoz11]

What is the Eaton reference indicating???
I just never paid attention to this before....Thanx!

[Mr. T]

E is a positraction code. E refers to Eaton positraction differential.

[rpoz11]

Ahhhhhhhhhh That explains that! Ok, Now I know. Thanx! The "C" is for ????

[WILMASBOYL78]

"C" is the first of three letters that designate the axle ratio code that applies to a specific model and year. The three letter code started witht the 70 model year. EG: CBT = 1970 Nova 3.55 posi. Colvin's book has a complete listing of the codes.

wilma

[rpoz11]

Mine has the C then the two digit code for a 69 Camaro
So the C here is for?

[Mr. T]

What are the two letters after the C?

[rpoz11]

sent you a PM

[rpoz11]

Sorry, the PM came back to me for some reason; I re-sent it to you...