Axle casings

second chance said:

Need help with identifying axle. Have a 1969 Coupe.; The axle tag says;

WCZ - V1 9AC
79 8 930A

I was pretty sure it was an 8" item until I compared it to a friends 9" and couldnt see any external differences. Are the casings the same? How can you tell from the outside? It bolts up from the front of the axle and has a ribbed casing on the diff. The picture below is of a 9" (which looks exactly like the one I have) but I cannot find one of an 8"-

Thanks.

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