Its A Bitch And A Half, But I Changed Mine, I Used A 3/8 Drive With 2 10" Extensions(1 Wobble). Be Careful Though, I Had To Place A Board Across The Engine Bay And Get On Top Of It In Order To Reach(be Careful Not To Stay In One Position Long Enough To Cause Your Feet To Fall Asleep To The Point Where Someone Has To Help You Out The Engine Bay), Then I Cracked One Plug Trying To Get It In, Then I Lost My Spark Plug Socket... It Fell Off Just After I Tightened The New Plug, Never Did Find It, Not On Top The Tranny, Not Under The Intake Manifold. I Believe It Ell Thru A Worm Hole Into Another Dimension. I Have Very Thin Hands/arms With Thin Bones And Can Fit My Hands Nearly Anywhere In That Engine Bay. The Socket Is Nowhere To Be Found.
Its Possible, And Difficult