Allis-Chalmers introduced its WD tractor in mid-1948 as the replacement for the WC model. Although the WD ... operated a clutch located between the PTO power train and the transmission.

The popular Allis-Chalmers WC tractor, a 2-plow ... Optional equipment included a distillate engine and a combination PTO and rear-mounted belt pulley. Allis-Chalmers provided a wide variety ...