its pretty simple as you guessed just make sure you do them one at a time so you don't mix up what wire came off of what plug. should be a 5/8 deep socket counter-clockwise to loosen. clock-wise to tighten. they should be gaped as well it will say somewhere under the hood on a little white sticker with all the engine info what the gap wants to be. most likely 30 thousandths of an inch. the parts store where you buy the plugs have gappers also cheap probably 3-4 bucks. spin them in by hand all the way then tighten 1/8 - 1/4 turn more. don't discount the wires too though. they should be done with the plugs
