(Used) 2013 Peterbilt 384, REAR REAR- Make: Spicer, Model: RSP41, Ratio: 3.42, Hub Bolts: 10, Brake Type: Air Wedge, Serial Number: HN04066736, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921