Watch those sqeaky road wheels in time those will wear down the axels, and the inside of the road wheels. I had to fabricate plastic bushings to refit mine on a Bulldog. Showed some wear at about 50 hour's, were gone at 80 hours. Since rebushing it, I now use chainsaw bar lube in a suirt can to shoot a little in the road wheel, axel, spot. It be imposible to keep grease in there. That stuff is liquid enough to run in the gap, and sticky enough to stay. I grease, clean, gearbox, "metal", every 20 hours and give insides a general cleaning. Oh and super glue is a must for the track pins. It now has 150 hours on it since August.