What makes a 1-ton different?
We all know the cab, fenders, grill and hood are the same as smaller trucks. The motor and transmission are the same.
The frame is very similar to a 4100 but the 3800/250 does not have the bumper extentions for the big truck bumper.
The driveline is fully open on all years (is it?), and the axle ratio is 5.14 with big brakes.
What comes to your mind as making a 1-ton unique?