12 bolt gm posi

[GSXTRA]

Can anyone on here help me with info on my rear. Here are all the number I found on the rear.

It is a 12 bolt with a posi, but thats all I know.

On the axle tube is CCF 1113B1

ON THE CENTER SECTION IS 1234567890 AND A CAST MARK BETWEEN THE 8 AND 9

39692-8NF GM 54 CON1

Any help would be of great help.

Thanks Andrew

[NovaPwr]

I believe the CCF 1113B1 is a 3:31 posi traction built on November 13th in Buffalo on the 1st shift. Could be out of a 70 Chevelle or Monte Carlo. Not sure on the center section though.