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Theory #3: Your tires may have manufacturing variances in diameter as wide as 1-inch; especially with taller tires. Like the pressure difference, the differing diameters will cause the locker to lock and unlock more frequently since the shafts will be turning at different speeds.Conclusion: We drew a chalk line on our tires with a straight edge and then rolled the Jeep, marking corresponding chalk lines on the driveway. Our measurements were nearly identical, but our tire diameter is small. Differences may be more drastic with larger tires.

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