Forestry and Logging Equipment: Felling-and-Bunching Machine John Deere

Model	Caterpillar track length on ground level
959J	3810 mm - 12.5 ft.
953J	3620 mm - 11.9 ft.
909J	3810 mm - 12.5 ft.
903J	3620 mm - 11.9 ft.
853J	3370 mm - 11.1 ft.
759J	3560 mm - 11.7 ft.
753J	3560 mm - 11.7 ft.