I have a Craftsman LT 1000. 917.271810. I was having issues with turning left where the steer wheel would just click, but it would turn right. I wasnt sure what was wrong, so I replaced the sector gear, steer shaft, and the plastic support shaft that holds everything together. I have cut my grass, maybe 5 times. Now it is doing the same stuff all over again. I s there some thing I am missing? Any ideas?