If you remove the coil packs first you will gain alittle more room to work. With the use of a spark plug socket and a socket wrench it is possible. I believe I removed the air cleaner box as well to gain a little bit more room.

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Ray
1998 Mercedes E320, 200K Miles
2001 Acura 3.2TL, 178K Miles
1992 Chevy Astro, 205K Miles