70 Chevelle 3.31 12 bolt posi

**Fast67VelleN2O** · #1 08-16-2008, 11:57 PM

I have a 70 Chevelle 3.31 12 bolt posi. It is coded CCW for 3.31. It was out of a 70 SS Chevelle that was parted out. No welds or repairs. Good used unit that has new seals installed and is painted black. No brake hardware. $900 obo must pick up I really don't want to ship this unit.
Thanks SYC,
Matt

**Mr70** · #2 08-17-2008, 04:00 PM

That's an open rearend originally,not a posi.Did you or someone else modify it?
I have a friend looking for a CW.What's the casting & assembly date?

**Fast67VelleN2O** · #3 08-17-2008, 08:16 PM

Yes I know that this rear was originally coded for an open 3.31. The posi unit was in it already when I opened it up. It is a GM 3 series posi unit. I cannot read the casting date on the housing but the assembly stamp is 0812K.
Thanks,
Matt

**69 Post Sedan** · #4 08-18-2008, 01:45 AM

There is a 1970 Chevelle for sale on this site and ebay that has a CCW rear end but it appears to have a E stamped on it. Is this still a factory posi?

https://www.yenko.net/ubbthreads/show...fpart/all/vc/1

http://cgi.ebay.com/ebaymotors/ws/eBayIS...hlink:middle:us

Kurt

**Fast67VelleN2O** · #5 08-19-2008, 09:09 PM

I will have this rear at Corvettes at Carlisle this coming weekend. My space number is L88... easiest space to remember at that show!

Thanks SYC,
Matt

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.