Save your money, they don't work as advertised. Constant Battery problems and only work on loose gravel
I've owned the grader for about 4 years. I bought it after my driveway rock had been down for about 3 years and was looking pretty ragged with several minor to intermediate washouts. The grader was being offered at the time with a 6 month trial, so I decided it would be worth a try.
The driveway is 400+ feet long and the grader, towed by a UTV worked like a dream. I loaded the weight basin with bricks and after about 10 passes, the drive looked like it did when the rock was first put down. No kidding, I was amazed.
Since then I've used it once a year for about 5-7 passes and until this year never had occasion to add additional rock. The scarifiers look new and there have been no frame, mechanism or tire issues. I did have to buy a new battery this spring, but only because I neglected to put it on the charger last fall. There is no cure for dumb.......
I am currently selling the grader, but only because I had asphalt laid this spring. I wish my mowers, which are not from DR, were as reliable.......
I've got the 48" model. I use a modified Craftsman 21 HP hydrostatic yard tractor (YTS3000) to pull it. Does fine so long as you use common sense in setting the depth control. My road is 7/10 mile long and has an average 12% grade on the 400' climb up the mountain to my house. I can put the teeth full down in hard or loose material going down. I do have to limit the depth when coming up the mountain on loose material. I modified the tractor to handle a snowplow and snowblower on this grade. The same modifications are what enable me to handle the grader reasonably well. I have all four tires loaded with liquid. I have rear wheel weights. And I carry 75# of weight above the rear hitch. That's about 50# less than what I use to push my snowblower up and down the mountain on snow and ice. I use chains in snow. I haven't seen the need for them with the grader. This combination replaced the 85 HP 4WD tractor with 8' box blade that I used on this road for 19 years until I got tired of keeping that monster up just for road maintenance. The Craftsman and grader and snow equipment do the same job for a LOT less operating and maintenance expense. It doesn't take all that much longer to do the same jobs. And I can do SO MUCH MORE on the rest of my property with my yard tractor. So, yeah. You can pull it with a lawn tractor. And pull it well. But you'll probably have to do something about traction by adding a lot of weight first. I don't think you could do much with most lawn or garden tractors without doing that.