need help i have a 12 gm rear end not sure what it came out of org, i pulled it out of a 69 skylark not sure if it belongs there it is a 12 bolt with a round cover has u bolts for drive shaft not threads on tube the letters are sc on the on the axel it self is 172 i hope you can help thanks gransportwo No:
12 bolt with a round cover is an Olds 12 bolt. Chevy has an oval cover with drainage (eyebrow) in the cover.
I have a 12 bolt "OLDS" in my 70 GS---it has a VERY clear stamp on the axle tube(passenger side facing aft) albeit upside down-- it has S7--Oldsmobile code 323 anti-spin (69 type O). Verified it by rotating rear tire 10x and watching driveshaft(after marking it) go about 32 times around.This method is a pain but does work. Pete
Canadian-built models had a Chevy 12-bolt installed in '69 (and other years also I'm sure). If the 7th digit of your VIN is an "I" (looks like a 1), your car was built in Canada and that is a Chevy 12-bolt. -Bob C.
HI thanks for the help. i cant check the vin. i got rid of the car if anyone is interested in it let me know. anybody know what the letters sc on the tube or 172 on the punkin means. well ill talk to you later gransportw
