Take a look at the picture in the link
Buy Felpro Intake Manifold Gasket Set MS 98014 T at Advance Auto Parts___
That's what comes in the gasket set mentioned. Has 6 fuel injector o-rings. They expect you won't be pulling them out of the rail. In reality if you have a 2000 then you may want to replace all 12 of them based on age. Part is ES70599, there are 4 rings per package.
Looking at the picture..let's name the gaskets, in case anyone isn't sure what piece belongs where:
Top metal gasket - one side of lim to head gasket
Left side outer - 98+ engine end seal with locating pins. This sits under the driver or passenger end to seal the LIM to the block.
Left side right of outer - 96-97 engine end seal without locating pins. This sits under the driver or passenger end to seal the LIM to the block. Blue in color. Will not be used on your motor
Tube - RTV for the corners were the head to lim and block to lim gaskets meet.
Four o-rings in top row - One should be pcv, two for the coolant elbows (get new elbows), last may be back of L36 manifold vaccum hose to brake booster.
Big ring top row - Appears to be a thermostat seal (goes around stat)
Bottom o-rings - six fuel injector o-rings
Bottom right paper gasket - thermostat housing. used only on pre 2000 engines. Will not hurt to be used oon a 2000+. Many 00+ seep from the thermostat housing.