I have a 917287140 gold Craftsman rider I am trying to fix the sloppy steering on. I have the top bushings ordered and started taking it apart tonight. Steering wheel and the top of the tower came off easy. The problem is the 6" shaft extension is bigger than where the bushing rides and I am not sure how to remove it. The part #s are 196075 on the extension and 430471 on the shaft. I cant get a good pic of either part to find out if it is threaded. It looks like it is, but I cant get the crazy thing unscrewed with 2 pipe wrenches and I am making a mess of it. I am soaking it in home brew and would like to put some heat on it, but it is right next to the fuel tank, so open flame is not my first choice. Any ideas?