'91 S-15 Jimmy Transfer case front seal needs replaced. So far I've removed both drive shafts, disconnected shift mechanism and vacuum connector. Is there anything else lurking up there that needs to come off or get disconnected before I remove the box?

I have searched and think I have it, I just want to make sure I'm not missing anything.

 

I have the transfer case out and now I need to find that rubber adapter that sits on top of the vacuum switch. I can't find the part or the part number. Anyone know what it is or have a part number?

 

I found the part number for that adapter but the part is N/A so I attached short pieces of vac hose to the switch and labeled them with electricians tape. I guess I'll see if it lasts. identifying what was what from the top was easy with a MightyVac. For reinstallation of the transfer case, I got two 10 x 1.5 bolts and cut the heads off and used them for alignment pins. Once the transfer case was up close, I installed the gasket with a couple of dabs of grease to hold it tight to the transfer case and slid everything together. All seems to be working fine.