; HomeHeavy Duty Truck PartsDifferentials & Differential PartsRear Rears (Tandem Rear or Single)OtherOtherUsed 2004 WESTERN STAR TRUCKS Rear Rear (Tandem Rear or Single) Used 2004 WESTERN STAR TRUCKS Rear Rear (Tandem Rear or Single) Unfortunately this part is temporarily unavailable. View other Other Other Rear Rears (Tandem Rear or Single)