I bought a Bush Hog heavier than the 370 pound one replaced, by 168 pounds. The front end is light now and I wanted to know how much weight approximately do I need to put on the weight bar on the front of the tractor? I believe the front tires are those 11 x 4 standard tires. Could put some CaCl2 in the front tires to help, but that would not be enough front end weight. Any suggestions would be appreciated.