ContractorThe Allis-Chalmers HD-15Contrafed PUblishingSeptember 7, 2022November 21, 2022 by Contrafed PUblishingSeptember 7, 2022November 21, 2022 One of the last GM-powered track type tractors offered by Allis-Chalmers, the HD-15 was also a top performer and paved the way for the subsequent...
LeTourneauOff-Highway TrucksBirth of the Articulated Dump TruckContrafed PUblishingJanuary 23, 2017June 18, 2023 by Contrafed PUblishingJanuary 23, 2017June 18, 2023 Developed to a greater potential during the late 1960s with the advent of all-wheel drive, the articulated dump track has actually been around for a...