FMS Hose replacment kit

It's really not a difficult task, although it does require completely draining your cooling system, so it may not be a bad time to run to your local auto parts store and buy a flush kit, while you're doing it. All of the hoses on the engine can basically be manhandled into place, but the ones you'll want to be most careful of are the two heater core hoses. First, ensure the hose has the restrictor inside (should be the larger feed hose, if I recall correctly), and then cut the ends open so the old hose will come right off. A dab of coolant, soap, etc. inside the new hoses when putting them back on may be the difference between your heater core surviving and having to replace it because one of the solder joints broke. Good luck!

I get a kit from 5.0 Resto. I don't want to take a chance with the heater core hose. So let sleeping dog...
Those short little hose on the water neck housing is a pain to put on. Not much room to play around with. I ended up have to put one of the hose end on the water neck housing first.

There's no sealant necessary, as the clamp should do it. If there's no spring in the new lower hose, it definitely needs to have one installed into it.