2007 Spicer/Dana RS405, Truck Tractor, Tandem Cutoffs, Fits to: Mack CXN613, (Used) 2007 Mack CXN613, TANDEM CUTTOFF- Make: Spicer, Model: RS405, Serial Number: HN02484565, Part Number: 509828, Custom Number: 5QF5182M62, Ratio: 4.11, Hub Bolts: 10, Brake Type: Disk, 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 4.11, Serial# HN02484565, Hub Bolts 10 1M1AK07Y07N020501