2003 Mitsubishi Montero Transfercase Switches Replacement

Transfercase switches replacement on my 2003 Mitsubishi Montero/Pajero 3.8L petrol engine. Requires a lot of patience but can be done in a couple of hours with basic hand tools.
Parts needed
MR580151 (2H switch)
MR580152 (2-4H switch)
MR580153 (4H switch)
MR580154 (4L switch)
MR580155 (center dif lock switch)
Tools needed:
12mm wrench
14mm deep socket
Socket extension
22mm wrench
Jack stands
Floor jack
You will also need to replace the crush gasket on each switch, I don't have the OEM part number but I use regular crush gasket I normally used for oil drain plug.