I am in the process of replacing the steering sector assembly on my riding tractor and I am stuck at how to remove the old one. I have removed the battery, support bracket and have the steering shaft out of the way. I see that the sector is fed through a channel support with 2 small bolts through a plate on the bottom of the channel. I have not removed those as I am not sure that will help---I may be wrong. Any advice would be greatly appreciated. Thanks in advance.