69 12 bolt identification

[Mike L78]

I will look for the date code and add pictures later today
Thanks All for your help

[Mike L78]

The rear has a casting # 3894860N does this indicate a posi ?

[Too Many Projects]

Originally Posted by Mike L78

The rear has a casting # 3894860N does this indicate a posi ?

No, a posi code would be included with the assembly code with an E as you have in the first pic.

[WILMASBOYL78]

That is the casting number for the 12 bolt center section....68-69 Nova and Camaro

The posi designation is in the stamp on the tube...there will be an E below the gear ratio and date. the E stands for Eaton Posi...of course, you should always look inside to confirm what is in there.

[WILMASBOYL78]

Mike...

One more thing...should have clarified...the BT code actually designates the posi from the factory...the E indicates the supplier of the unit. If you look at Colvin's book you will see a listing for all the possible codes and applications.

Tom

[Mike L78]

dding a couple pictures of the 12 bolt think I have the date but it’s hard to read.Also getting the leaf springs and traction bars .$1700 . What do you think

[iluv69s]

Looks like 09(?)- 24-8 for the cast date and 09-27 for assembly date. ( Thought cast date should have letter for month ).

Great for an early car ! $1700 is a great deal if it’s a working complete rear . Jmho

[Too Many Projects]

Seller needs to be willing to pull the rear cover so you can see what is actually in there.... assembly build codes guarantee nothing after all these years and with a non original cover, there could anything, including trashed components, in there.