Seller notes

NP246/NP261HD/263HD Rear Heavy Duty Updated Aluminum Transfer Case HalfFits all GM with NP246/261/263HD transfer casesMagnesium transfer cases are soft & aluminum pumps are harder so these units have a problem with the pumps wearing into the rear case half & causing a small hole & leak that will ruin your transfer case. Simply replacing the rear case with a factory magnesium case will not solve the problem. This heavy duty aluminum rear case will replace the problematic OEM case & your problems ...

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