Technical 7.5/ 7.625 GM 10 Bolt ID

Hey guys, I just picked up a GM 10 bolt and I'm having trouble identifying exactly what it came from. I know its a 7.5 or 7.625 from the oval shape of the cover, the two "fangs" on bottom instead of "blocks", and the mounting point near the pinion nut for the arm running along side the drive shaft. It has drum brakes and coil springs. It measures around 55" flange to flange and 61" from hub to hub. It looks identical to the one i've pulled from an 1985 camaro. I want to know what it came from so its easy to get parts from the guys at the auto stores. The axle code, on the front passenger axle tube reads, 2H G C262 2

 

2hg = 1986 3.23 open
C=chevrolet Buffalo
262 = sept 19
2= 2nd shift
camaro rear end

 

thanks so much stimpy