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The ARB differential case 139 Ret Spr is a replacement housing used for differential rebuilds and repairs. It supplies the core structural support for internal gears and carrier assemblies during axle servicing, helping ensure proper alignment and reassembly. Confirm the ARB case 139 Ret Spr designation when ordering to match your rebuild kit and internal components for correct installation and restored drivetrain function.
ARB Sp Diff Case 139 Ret Spr
