As enochbell suggested remove the coils to allow more room to work and take your time. I also used a regular spark plug socket. Hand tighten the new plugs. I used high temp anti-seeze on the spark plug threads and dielectric greese on the boots to avoid what you are going through the next time I have to replace my plugs.

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