[b454rat]

Is the rear a full float? If not then it's not a 1 ton or heavy 3/4. I can't remember the the GVWRs are for each, but probly is just bigger brakes and suspension. Also just because it does have that stuff doesn't make it a 1 ton. Measure your frame under the cab then do the same, they will be different. 1/2-3/4 frames 2wd-4wd are essentially the same, 1 tons both 2/4wd will have a 2" taller frame.