Posted 2/23/2012 02:02 (#2245987 - in reply to #2245836) Subject: RE: Tires on semi
Somerville, Indiana
The larger diameter tire will 'drag' the smaller diameter tire at least a couple revolutions/mile...Always match the diameters of the duals...This is old news, back when Overdrive Magazine had a centerfold that Paccar didn't make.