I had the original brochures .. here's what listed from the brochures ...
435's replaced the 70's ... 463's replaced the 80's
435C... Made from 56-61 .. 13 struck 18 heaped yards capacity... 23,500 lbs. empty weight
435D... Made from 59-61 .. 15 struck 19 heaped yards capacity... 25,400 lbs. empty weight
435E... Made from 61-72 .. 12 struck 17 heaped yards capacity... 22,900 lbs. empty weight
435F... Made from 62-72 .. 14struck 18 heaped yards capacity... 24,900 lbs. empty weight
435G... Made from 63-73 .. 12 struck 17 heaped yards capacity... 22,900 lbs. empty weight
CAT 80 Flat bottom... Made From 50-56... 15 struck 20 heaped yards capacity …. 29,863 lbs. empty weight
CAT 70 Flat bottom … Made From 51-57 … 10.2 Struck 13 heaped yards capacity … 20,150 lbs empty weight