I bought a 12-bolt with leaf spring perches several years back. The guy said it was from an early Camaro. It has several numbers as follows:
Passenger axle tube - C OU 0703G
Bottom front of flange casting number - 3969341NF
Top front of flange casting number - GM66
Rear Left top of flange casting number - CON2
Rear Right top of flange casting number - F2 0
Could be more numbers, but I was lucky to find those scraping the grease off! Much thanks. Matt.
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Bing
1956 Chev 150 2dr sedan 302ci
1965 Chev Malibu 2dr hdtp 496ci
1967 Chev Camaro 327ci
Passenger axle tube - C OU 0703G
Bottom front of flange casting number - 3969341NF
Top front of flange casting number - GM66
Rear Left top of flange casting number - CON2
Rear Right top of flange casting number - F2 0
Could be more numbers, but I was lucky to find those scraping the grease off! Much thanks. Matt.
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Bing
1956 Chev 150 2dr sedan 302ci
1965 Chev Malibu 2dr hdtp 496ci
1967 Chev Camaro 327ci