What year are you referring to? Usually the 30/300/3000-series are classed as 1-tons. the 4100 SHOULD be a "light-duty" 1-1/2-ton. I don't know if G.M. ever made a 1-1/4-ton,like some manufacturers. Hope this helps.
Last edited by wetwilly5757; 01/06/2014 7:44 AM.
