Toney, can these tractors be deleted ?Your comment isn't completely accurate. The engines are the same 9410-9560. The radiators and intercoolers are the same 9360-9560. 9460 scraper model has 120 mm axle shafts and planetary reduction differential. It can be ordered with 110 mm or 120 mm shaft and single reduction differential as well. Be sure to inspect.
+50-100 HP tune would be safe on the 9460. If you had a scraper model a person could go a bit higher if they were comfortable with it.
IF tires work very well when pressure is correct and tractor is ballasted properly.