Time not miles= sparkplugs
the plugs have a special coating that acts like anti-seize. When reusing the plugs, the coating gets scratched and worn off so apply some anti-seize if reinstalling a used plug. I just did the plugs on my '09 and they did not look that bad to me. Look in the DIY section, https://dodgeforum.com/forum/4th-gen...ug-change.html
I didn't need the second 5/8 socket and another member used a swivel adapter instead of the 1" extension
I didn't need the second 5/8 socket and another member used a swivel adapter instead of the 1" extension



