I need to remove my outdrive and bell housing to do a complete transom seal and bellow replacement. I've watched some youtube videos that tell you to disconnect the shift cable first, and then some that just tell you to shift into forward gear. I would think you would need to completely disconnect it, right? How else would you replace the shift cable bellows. If I need to remove it to get to shift cable bellow, are there any instructions that I can find on the internet on disconnecting it? Better yet, are there any detailed instruction links on how to do the transom service?