BY JIM ALLEN
Allis-Chalmers followed the trend to diesel power in October of 1954 when they introduced the WD-45 diesel tractor. The WD line started in 1948 and, with significant upgrades, morphed into the WD-45 range late in 1953. It started with gasoline-, distillate-, and LPG-fueled engines late in 1953 and, about a year later, the diesels followed.