Re: What gear ratio do i have??
Could be 3.08s, 3.42s. Check on the front diff for a tag held on by a cover bolt, if it's still there it will tell you the ratio.
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2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 4” SAS
1999 GMC Yukon 350/4L60 6" SAS
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