hi everyone, weve got an 05 mtx 150. i was mowing on it the other day tried to change up into the third splitter and the tractor came to a stand still. the third splitter wont work in any range but 1 2 and 4 splitter still works in all ranges. it moves about half an inch then stops if i put the clutch in and out itll do it again. ive noticed it drops ten revs when its in the third splitter with the shuttle lever in neutral. weve tried a new switch on the gear stick but still no joy. it was working fine all day then just stopped it gave no sighns it was going to break. thanks for any advice