umodelnut Posted March 4, 2012 Share Posted March 4, 2012 http://www.gerhartmachinery.com/antiques-classics/trucks/road-trucks/mack-u-md-tractor/ive seen this u model for sale on gerharts website for a while now and its rough. it says the serial number is U615DY1305. i have never seen a serial number with 15DY especially with a u model. could this serial number be correct? and if so what does it mean? i know if 1305 is correct it would be the 305th u model made. Quote Link to comment https://www.bigmacktrucks.com/topic/23621-u-model-question/ Share on other sites More sharing options...
Superdog Posted March 5, 2012 Share Posted March 5, 2012 A U615 has the END864 V-8 Thermodyne.The DY is a typo,i'm guessing as it should be ST.If you look at your keyboard,D is right next to S and Y is right next to T.It would be the 305th U615 made,not 305th U model in general. Quote Link to comment https://www.bigmacktrucks.com/topic/23621-u-model-question/#findComment-105658 Share on other sites More sharing options...
umodelnut Posted March 5, 2012 Author Share Posted March 5, 2012 Oh ok thanks superdog Quote Link to comment https://www.bigmacktrucks.com/topic/23621-u-model-question/#findComment-105697 Share on other sites More sharing options...
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