Immisterfixit

Just as the title states. Im trying to find out what the ratio is. I have tried researching it but no success. Was there just one ratio or were there multiple. The one thing that I do know is that it isn't a posi rear end. Any help would be great, thanks.

a64olz

Codes are stamped either on the right inboard side of the axle tube or on the right side of the carrier. Carrier's are stamped with letter code and tubes are stamped with actual ratio.

Codes on the carrier = letter shows ratio code and numbers show date of manufacture if posi circled x before the ratio stamp.

Codes on the tube = letter shows the vendor and numbers show ratio if posi letter L follows the ratio stamp.

Example of carrier stamp A 203 = 3.08 ratio July 22
Example of tube stamp P 3.08 = vendor 3.08 ratio

A = 3.08
B = 3.23
C = 2.78
D = 3.55
E = 3.36
E = 3.90

wmachine

Start your research at Wild About Cars and you will usually end it there!
What you are looking for is in Section 0 of the 1964 Chassis Service Manual available in downloadable pdf format free of charge at Wild About Cars:
http://wildaboutcarsonline.com/cgi-b...aldisplayed=50

Wild About Cars. http://wildaboutcars.com. An information supersource, especially Oldsmobile. More Olds content than anywhere else on the internet and continuing to grow.
You'll find Chassis Service Manuals, Product Information Manuals (AKA Assembly Manuals), Inspector's Manuals, and other documents that will contain this and much much more.
Dealer Brochures, magazine ads and articles, and the Automotive History Preservation Society library growing daily.
Free to join, free to learn.

Immisterfixit

Thanks for the info, its greatly appreciated.