I have a 1963 Cadillac differential with 80K on it. Found a limited slip a while back, and I do not think I will ever used the original diff.  In is in carlsbad California 92009.  Let me know if you are interested or know anybody we might be

Thanks, Frank 760-840 1350

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Frank, Are you selling the limited slip (optional controlled) differential or a regular hypoid differential? Also, what gear ratio and is this just the differential assembly or the differential assembly along with the rear end assembly? The stamp on front face of carrier will tell you the gear ratio - 1 for 3.21, or 2 for 2.94. There will be a G in front of number if it is the optional controlled differential.   

Jus to add 75 Series (limos) and commercial chassis cars used two additional, lower gear ratios. You can check it out out on this Help Page: Rear End Differentials: Gear Ratios, Controlled Differentials and S...  

3.21 regular hypoid differential out of a 1963 series 62 convert made in Nov 1962 with A/C

Thanks for pointing out the missing information

Hi Frank,

I live in Encinitas and have a '64 Eldo. Surprised I haven't seen your car out cruising around. 

What condition is the diff in?  Other than the 80k miles.

 Is it rusty? Rebuilt?  Any other info?  

I'd like to come by and see it and say hi, and check out your car too.

Let me know, thanks.


It is fine, I found the LSD and made the switch, but there is nothing wrong with it at all. It is even pretty clean,  the brake back plates are off of it because I swapped the originals to the LSD - They were powder coated. I have 2 originals that are also pretty clean

My cell is in 760 and is 840 and 1350. My Cadillac is waiting for a master brake rebuild - it is a couple of weeks from being complete again. 

Thanks for the info, Frank.  

My Eldo is nut-and-bolt restored, but has the 2.94s, so I was interested in the condition of your parts.

I doubt I'll make any changes to mine, as it garnered 97 out of 100 points at the CLC Nats a few years ago, but it'd be nice to meet and see your car when it's back on the road. 

Let me know when, thanks.




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