1986 Ditch Witch rock saw, model R100, serial number CF0190, 4WD, replaced diesel power engine with a 150 HP turbo charged diesel engine, 1,839 hours on the meter, includes the 1995 Ditch Witch rock saw model H840, SN 2M2206, 8� diameter wheel, 39�depth, the carbide teeth selling with this saw will be uninstalled, (42) front suitcase of counterweights,. Gearing has been modified to allow for slower ground speed.