(USED) 2009 Freightliner Cascadia 125 - TANDEM CUTOFF - Make: Meritor. Model: ART-40. Serial Number: 771AAC-A0654721. Ratio: 2.62. 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.