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Re: found this one my 12 bolt rear end what does it mean
Must be an early 203, all ones I’ve seen had aluminum tail housing. I was gonna say something bout frame, but thought it was a 67-72 style and I don’t know much bout those.
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2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 6” lift
1999 GMC Yukon 350/4L60 4" SAS
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