okay so I finally got everything pulled out and the bearing installed but I noticed on the axle that the place the bearing rides on about 2/5 of the rod is gummed up. probably the main cause to the noise I was hearing. My question is, I'm a certified welder so could I weld on the gummed up part? I'm also a machinist so I can turn the weld back down after so... what should I weld it with? and anyone know if it needs heat treated?