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Spacer

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A flanged Dana 44 axle like ours has the axle bearing preload set by the thickness of the backing plate and seal. The new caliper bracket is thicker than the backing plate so a spacer must be installed behind the axle bearing and seal. This is a good time to replace the bearing and seal since they get ruined when removed, but we just cut the spacer to fit over the axle (arrow).

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