CAT D11N dozer pushing some boulders from scraper cut.  What an operator! three rocks in one trip. COOL! Keep up good work Operating Engineers!  Imagine if you could take some of the ancient builders of Egypt or somebody from back then, and show them this.  I have a vast experience in CAT 3500 diesel engines rebuild especially in power generation. CAT 3508 is a good engine.  This would make a great location for one of those Star Wars movies. All you would need to do is turn the sky red.  Cat should build a D12 or D14. Because the 575 Super Dozer is bigger than the D11  I wish I had that d11 instead of the d7 when I was stripping a field the size of a lake  There is only one Dozer that is bigger than this one right and is it the komahatzu or something or am I totally wrong  I don't understand why you are fighting with them A 20 ton excavator/backhoe with a breaker/hammer would have had them in bits in a couple of hours... No need for all the wear and tear.