13 gears and double clutching every shift.  Well, I actually only used 9 of them since most of my miles were on rough gravel road.  Still, that is a real workout for knees that are used to only driving an automatic!  I spent two days driving dump truck hauling gravel to help repair some huge potholes and truck eating soft spots on backcountry refuge roads.  I tried my hand at dump gate spreading roadbase for the guys on the grader.  12 miles or more, it was a pretty satisfying assignment.