2012 Meritor/Rockwell MT4014X, Truck Tractor, Tandem Cutoffs, Fits to: Freightliner Cascadia 125, (USED) 2012 Meritor/Rockwell Tandem Cutoff. S/N-DRA12032381 P/N-C11-00035-051 Ratio-3.55 For more information about this item call. We ship Worldwide. 929 W Pulaski Hwy Elkton, MD 21921, Ratio 3.55, Serial# DRA12032381, Casting# DRA12032381 1FUJGEBG2CSBW8346