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Re: gear ratio gm 14bolt upgrade
Go with 3.73s if you have the power. 4.10s make the motor scream with those tires at highway speeds. Truck nor you won't even notice the difference between the two axles....
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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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