I got to run one of those, or a D31? a few years ago. I'm a Cat guy, but it was a nice smaller tractor.
We had 2 D31’s, the literally started falling apart. The owner was watching them grade one day and the top roller fell off.
Depending on the dozer it can make a 1 to 2 foot difference in width. Its almost 2 feet narrower when hauling a 9.
You mean removing corner bits? I'm not sure I have ever seen a D9 with an angle dozer, quite a few 8s though.
I'm not sure I've even seen PATs on an 8, just the old style that you un-pinned the arms on either side and manually pivoted the blade. I did see a whole bunch of 8R/8Ts sitting in North Dakota one time that had the c-frame for angle dozers but no dozers attached. It looked as if it was at the completion of a pipeline project, and that they had removed the dozers and shipped them out already.
I have not seen a power angle blade on them. Angle it before loading onto the bed. Also never seen a 10 or 11 hauled whole. Maybe some are moved still together, but the only 10 or 11 i moved were in pieces. Some people have those 16 axle setups and maybe not in the steep mountain terrain i am in, so possibly they can haul an 11 with blade and C frame attached. If i ever do see that myself hopefully i can stop and take a good look at their set up. I bet even on a good paved road pulling that load, just a 10% grade would feel more like you are trying to drive up Mt. Everest.
There's a 10 with outside dozer, and an 11 with no dozer parked next to the railroad(east of the embankment) south of 159th street in Harvey, the dealer there moved out but must still have enough property to park a few hard to move machines.