ive got the one closest to the driver & driver side, and i cant get it back in, anyone have any suggestions for me?

i relized my miss, and my exhaust leak was because this one was not in in the first place, it was just put in on the wrong threads... but it wasnt in at all, i put my ratchet on it and it fell off...

so i took it out and now i gotta put it back in but how do i put it back in???

 

Your threads could be screwed, pardon the pun. You could try the fuel line trick, use a piece of hose like fuel line to put over the inslulator of the plug and use the hose to turn the plug. You want to have it go all the way to seating before you put a socket on it. If that doesn't work you will have to pull the ex manifold. If so go slow.

 

make sure to put anti-sieze on them. Its good for many reasons plus it makes it easier to put them back in.