12 bolt decode KDC code?

**SuperNovaSS** · #1 10-26-2005, 02:18 AM

I just picked up a 12 bolt rear. It is a factory 4 link setup. I haven't measured it so I don't know if it is A body or passenger yet. The code is KDC and it is a 1970 casting. Can anyone tell me what this decodes as? I don't see it in any of Colvin's books which leads me to believe it is Olds or Pontiac. Any help is greatly appreciated.

Jason

VintageMusclecar · #2 10-26-2005, 04:34 AM

The only thing I could find is that it *might* be a 1971 application for Chevelle/ElCamino.

Does it have the Chevy-style finned rear cover?

Are the axles retained by c-clips or pressed bearings?

**SuperNovaSS** · #3 10-26-2005, 05:21 AM

It has the standard Chevy cover. Not sure on the axles as the cover is on as are the drums.

Jason

**Mr70** · #4 10-26-2005, 05:08 PM

It's CKD suffix 2:73 open rearend for a 1970 Chevelle-Elco-Monte.
Starting in 1970,Chevrolet started the three code suffix and some of these were stamped with the "C" on the end,from my findings.

**YENKO DEUCE REGISTRY** · #5 10-26-2005, 05:10 PM

Rick,
Do you find that the 'C' stamping, whether it's a prefix or a suffix, is stamped separately from the other two letters? It appears that the old two position gang holder was used and the 'C' was stamped separately on the rears that I have seen.

**Mr70** · #6 10-26-2005, 05:36 PM

That's what I have seen too.
There were 3 different plants assembling this rear,Detroit,Buffalo and Warren.
I have seen them stamped C KK as in my cars example,as well as KK C.
I would imagine being a new format,most were unsure of the position.

**YENKO DEUCE REGISTRY** · #7 10-26-2005, 05:47 PM

Agreed.

**SuperNovaSS** · #8 10-26-2005, 08:48 PM

So it is a C KD Rear, but is actually stamped K DC. Is this correct?

Thanks,

Jason

**Mr70** · #9 10-26-2005, 09:33 PM

That's what I think.
Can you show us pix of the axle stamping?

**SuperNovaSS** · #10 10-27-2005, 01:45 AM

Can do, once the rain stops

Thanks everyone,

Jason

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