2008 Dana S23-190D, Truck Delivery, Rear Rears (Tandem Rear or Single), Fits to: Kenworth T300, (Used) 2008 Kenworth T300, DIFFERENTIAL GEARS ONLY- Part Number: 512394, Serial Number: HN02905038, Make: Spicer, Model: S23190D, Ratio: 4.78, Capacity: 23,000 Lbs, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Ratio 4.78, Serial# HN02905038, Casting# HN02905038 2NKMHN7X28M234339