Whoever had this axle before me must have used air/hydraulic tools to put it on. I CANNOT budge these locknuts. I even made a special tool, like a 4-way lug wrench, but with the locknut socket on it. Still can't budge it. I called around and a shop wants about $50-60 to do it (basically 1 hour of labor). Hell, a knockoff air impact wrench only costs that much and I would have something to show for it! But I don't have the money. Do you think an impact hammer drill might do the trick? Worth a shot?