2001 Pathfinder thermostat

I looked for YouTube videos to help me install a thermostat, but most were very involved. To me, it didn't look so complicated and it wasn't.

However: I have a 2001 Pathfinder SE with a 5-speed. 275,000km (165,000 miles)
Here are some helpful tips:
1) only need a few tools, long needle nose pliers, 10 mm socket and rachet, an antifreeze catch pan, a funnel to fill the radiator, a tinier funnel and small hose to add antifreeze to the VENT TUBE.
2) I bought a Gates thermostat integrated into the housing. (no choice) It comes with a sticky gasket. (very helpful)
3) I removed the lower hose, first draining the engine at the bottom.
4) after refilling the rad, with VENT cap removed, complete filling through the VENT TUBE until the rad starts to overflow, with no air gap. This may require a couple of topping ups, then install the vent cap and radiator cap, and pour the rest of the anti-freeze into the overflow canister, to MAX. (very important steps)
Also, VERY IMPORTANT in the 3.5 for sure, there is a bleed tube beside the rear thermostat that HAS to be used when refilling an empty cooling system TO PURGE the air out. (yes, there are two thermostats in the 3.5)

This should take about half an hour, without removal of any other parts. ( I did remove a vacuum hose clip that kept scratching the back of my hand )