 With the WDM-3D, IR finally got it right on how to rebuild the old ALCO engine to produce 3300 hp.By this time, EMDs had become a staple of the scene and along with the rebuilt engine, the brilliant DLW and RDSO engineers were now successful at integrating the best features of EMD locomotives like microprocessor control, larger fuel tanks and oil sump, possible fiberglass cabin and improved control stands into the ALCO, making it a kind of EMD-ALCO hybrid!These locomotives can be easily distinguished from other ALCOs by the “narrower” body shell with much walkway space around it, full-length railings, predominant “platform” space extended up front of the long hood, solid cowcatcher and DBRs fitted on the roof of the unblemished, smooth short hood for some later models and rebuilds, giving them the “hoodie” look.