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Re: K30 Downgrade to Cummins Project
My bone stock cummins tows just fine in overdrive with 3.55s. I think you'll want the 3.73s. We ran an '05 10.5 AAM on the 82 frame for my brothers crewcab. We had to relocate perches and shock mounts. I've also noticed the limited slip GM uses now (still has the RPO G80) is a different and more reliable design.
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