How to add front weights to a Case 580C

Hi my 580c is very light on the front end and with bushings and bearings worn on the swing frame every little rock feels like you hitting speed bumps at 100mph. I am looking at adding some weight to the front end and not having to worry about filling up the bucket with dirt every time. I removed the front cover underneath the radiator and there are 4 3/4'' bolts that will fit there. I have 1/2 plate to make a bracket and want to use some hang on IH weights or a hunk of iron. Wanted to know if any one here has done this and maybe with some pictures????

Thanks

Daniel