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Re: Ring and pinion choice for 4.8 LS
I am against the 3.73 in light of your single turbo goals. 3.42 will still be peppy behind the 4l60e. Stock truck ecm really comes to life with a basic tune. Tuned by Frost did my C10 a few years back. Made quite the difference, despite the 2.73's and long 1st gear in the 4l80e. I am going twin turbo on mine so a 3.4# something gear is what I plan to install after.
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