B1, the half ton or 3/4 ton refers to the size loads it will carry. The 1/2 ton is just your every day ordinary (for here) pickup truck whereas the 3/4 ton is designed for a little more hauling/work. Heavier duty suspension, tires etc.
My bad, thx for explaining it! In retrospect, my posts about this seem a bit silly now <img src="/ubbthreads/images/graemlins/doh.gif" alt="" />
