(USED) 2007 Mack CHN613 - TANDEM CUTOFF - Make: Mack Model: 64KH510. Ratio: TBD. Hub Bolts: 10. Brake Type: Air Wedge. For more information about this item, give us a call. We ship Worldwide!. (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY. ELKTON, MD 21921.