2013 Meritor/Rockwell RT40-145A, Truck Tractor, Front Rears (Tandem Front), Fits to: Freightliner Cascadia 125, (Used) 2013 Freightliner Cascadia 125, FRONT REAR, Make: Meritor, Model: RT-40-145A, Ratio:3.21, Serial Number: FORO1980003, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS), Ratio 3.21, Axle Spline Count N/A, Serial# FORO1980003 1FUJGLDR5DLBR6155