I have the following markings on a rear differential. SA B105 2 Can anyone tell me what the SA stands for?
Another mystery. It has the "A" casted into the pumpkin so it's for an"A" body. The car was built in Fremont. It is a Posi rearend with 3.42 gears. The date is spot on for the build but I do not know why it is stamped SA.
That is an Oldsmobile code for 71-72 8.5” 10-bolt,built at the Buick plant. 2:73 non-posi. All of the 71-72 Cutlass/442’s that were NOT built in Lansing Michigan,got that rearend. They also got the brake drums with the Buick insignias cast in them. The large “A” is cast on top and on each side of the pumpkin. This same casting came in ALL 71-72 Skylark/GS cars.
Would the Olds still have the "B" in the code which signified it was a Buick rear end or is this another case where they ran out of differentials and grab what they had. What is weird is the build date is correct for the build date of the car.
According to this, the B means it came out of a Buick plant, and it is a 2.73 open. https://classicoldsmobile.com/forums/drivetrain-differentials-6/rear-end-code-72-cutlass-63583/ https://classicoldsmobile.com/forum...ials-6/72-cutlass-diff-identification-112962/ From the second link,
Yes,ALL of the 71-72 Cutlass/442’s that were NOT built in Lansing Michigan got that casting and had the “B”code stamped in it.
