Situation- Recently purchased a 2012 Sierra 3500 Denali. Truck was tuned with a PPEI autocal. The previous owner had swapped in 4.56 gears about 50k miles ago. This set off the ABS light and...
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Situation- Recently purchased a 2012 Sierra 3500 Denali. Truck was tuned with a PPEI autocal. The previous owner had swapped in 4.56 gears about 50k miles ago. This set off the ABS light and...