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Bump Stop

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The ProRock 44 JK housing shares a common coil seat with the TJ axle assemblies. From the factory, the JK bump stop target on the axle is taller than the one on the TJ axle. To make up the difference in height and bring it to stock height the JK ProRock 44 bump stop target uses an 0.880-inch spacer. If you have a lift kit which includes a bump stop spacer you will need to stack both of the spacers up in series in order to establish the correct bump stop position.