finished rebuilding the t-case (almost) but have one question about the input section. my aa adapter (4l60e to 3spd) came with a spud shaft that goes in as the input and the two gears are slid onto the shaft then it goes through the bearing at the rear and then a nut and then the cone shaped cover. Well, what keeps the whole spud shaft and gears from walking in and out? i can push and move it enough that the whole gear almost dissengage inside the case. my exploded view shows a spacer after the bearing then the nut, but there are not enough threads on the spud shaft anyways. any ideas?