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Unit Bearings

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The unitbearings aren’t an inherently weak component in the JK front axle. Dynatrac’s Jim McGean says his company has done calculations that determine rim offset with heavy tires is more damaging to the bearings than impact. So if you’re running wheels with shallow offset and heavy tires, the increased leverage is more likely to effect wear or damage than jumping and or regular off-road abuse. Either way, periodically check your unitbearings.