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Discussion Starter · #1 ·
I am in the process of replacing a rusted frame on my 66 SS convert. I have a frame that is supposed to be from an El Camino, and according to the chassis manual it is 3.25 inches too long, so I just finished cutting that and am ready to weld it back on. I found a few numbers on the drivers side rear section. Can anyone tell me what they mean. On the top is 6Z54654 and on the side is 3876907
Thanks for any help.
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