Didn't care for the trucks under the Genesis GP38-2, so I just stuck some trucks that I know will work the rest of my life without a problem. There was some machine work involved but quite minor. This also allowed me to use Blomberg M trucked side frames under them and 5fwd chime horns (cal-scale 316). Like Ryan had said in another post, I didn't care for the factory sander hoses, so I clipped them off and added the hoses to the trucks. The SL-SF 400 has a Silver horn, likely a replacement. There are photos of this loco using this type and color horn. The SL-SF 436 I just had to do, as there was a picture that shows it at the QA&P depot. A cal-scale 316 is atop it painted with MM Chevy engine Red. When applying the paint it looks a bit darker than the rest of the loco, but after masking all the windows, and applying a generous coat of MM dull coat to both locos the colors match very well. Now, its off to the weathering Laboratory, clean the wheels and remove the masking, and into service they go. Thanks for looking!