Does anyone know the ratio on a single speed 46 2ton, or were there more than one ratio available?Also I can get a rear out of a 1960 40 series with 18" duals.Would anyone know the ratio of it?The brakes on both of them will need to be rebuilt, so am wondering, if the newer rear axle would be a better one to put in the 46?Or will the diffs,interchange?Sorry for all the questions, but am trying to figure out the best way to get the46 roadworthy, and drivable at about 55 mph. Thanks Jim.