saw one today
Saw a dually go by the shop today (Hwy 52, 1 mile east of Ossian, IA) pulling a tandem axle dually trailer, with an old CAT D4 complete with dozer!!! I don't know for sure what a vintage D4 would weigh, but I'm guessing he was 35,000 GCW. You wouldn't have known he was heavy, to see him roll by. I hope he didn't have any idiots pull out in front of him!
Ray