What are the differences from a 50 and 60?? Also I am wondering is there a list of the different GVW class's offered in these?? Its confuseing me I know these are dumb sounding questions but trucks are something I never studied up on. I thought a 60 was a 60 and that was it. Then I seen a 60 or L60 with tandem axle and long grain bed one as long as you'd find on a KW or something and its labled as a 60. I really want to know what the GVW range is for the 60 series at least :confused: