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Re: Rear End Ratio RPO Codes Here
2002 1/2 ton 4.8, 373's,
1500 rpm is 55 in my truck, I do 70 mostly on high way and run at 1900 rpm
2002 Chevy Silverado Z71, 4.8 4X4 EXT Cab, 3.73 gears(GT4). With 2" lift, via rear leafs from a 2500, & cranked T Bars
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