I received my new white shifter bushing from Marlin but I don't know where to put it. The old bushing was so far gone I can't tell where it used to ride. My Haynes manual doesn't show it. Will someone tell me where it goes? All I have on my shifter starting from the knob and in order are the following parts. Knob, retainer cup, spring, ball, nylon bushing at the very bottom. I know the white thing fits in there someplace????