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Message: [QUOTE="H&S Bentley, post: 278275, member: 627"] What tire size did you input? There should be restrictions in the firmware that do not allow outside of a 31-34" threshold. I do remember we had one test version that got leaked out. It allows calibration outside of these ranges, and WILL throw codes. If in doubt, please set tire size to 32" size, then drive the truck for a few drive cycles. That particular "tire/axle out of range" diagnostic process has a pretty high timer for a "pass" flag, so it can take up to a few days of driving for it to clear. We are working on a "limitless" solution for the future that will allow much more adjustment range for tire size. You will NOT do any damage driving the truck with the P1635 code set. Let us know if we can further assist you. 888-628-1730 H&S Performance [/QUOTE]

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