Did mine three times since 1998 when I bought the car.
It seems to get better everytime. Number two plug is the evil one.
With enough contortions and yelling at God through my garage roof, I get it in the end. Driver side I get from underneath,passenger side from up top.
Thin wrists help out up there. The plug wires are a whole different animal.
I don't even want to talk about them
Did you see the message about the guy that is suing his dealership for charging $700 to put in new plugs and wires? I can see why at $75 an hour.
The crooks!!!!

 

Dielectric grease...can't beleive no one said that.