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Good point. I don't have mud tires, but do have a loaded quad cab short box...

Thanks for the info! I did know about the trans already and I guess want to keep things "safe" for a while until I can afford the upgrade that.

Some other cars have well documented and tried and true performance "recipes" to get to different levels (usually measured by 1/4 mile times). Anything like that out there for the 04.5-07 Cummins?
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