Allis-ChalmersClassic MachinesThe early Allis-Chalmers HD-16Contractor MagJune 1, 2024September 19, 2024 by Contractor MagJune 1, 2024September 19, 2024 One of the most popular of all Allis-Chalmers’ track-type tractors, the D8-sized model HD-16, first appeared in 1955 following the discontinuation of the former model...