how do i remove this little part sticking up at the top of my gearbox?
it wont fit into my sl-8 with it sticking up

im bout ready to try a hack saw. i slid the black part on top forward and the thing stickin up looks like it should just slide out and its all loose and jiggly. i tried tapping it out with a rubber mallet but it wont budge. i really dont wanna have to take the whole box apart to remove it. ive never had one apart before and i dont wanna screw it up. any help or ideas would be greatly appreciated