File:GM HT-C truck.jpg

This is the same blueprint that Lee Wright used to build the incredible SD locomotive HTC trucks for his world class 7.5" gauge Electromotive diesel locomotives. Lee sold me this drawing and said; "If you ever want to build a GM SD locomotive, you will have to use this blueprint". From http://www.chaski.org/homemachinist/viewtopic.php?f=30&t=90068&p=212506&hilit=Lee+Wright#p212506