Need to replace all 16 spark plugs and the guys down at the parts store couldn't give me a clear answer. Need opinions on which ones will be best. I also looked up a YouTube video of how to change them but I'm still not sure. Any help would be appreciated!

 

Go with stock plugs. Skip the rare-earth fellers. These engines just don't like 'em.

 

stock plugs!

 

Stock, but as for "rare earth" it depends on which 16 plug engine you have. 4.7 or 5.7?

 

V8 Magnum

 

AKA copper plugs.

 

I almost missed it, put info in the body next time, not the subject line lol (if you want help anyway)
Intake plug - 5149050AB
Exhaust plug - 5149888AA

Yes and no lol. You're thinking 3G hemi. 08+ 4.7's take coppers up top (intake) and platinum down below (exhaust). The change schedule is altered to reflect this; the uppers are supposed to be changed more often than the lowers (check your owner's manual).

The following are pages from both the factory parts and service manuals

 

**** I thought those were gonna be thumbnails LMAO

 

Manual that came with the truck when I bought it (used) is missing some pages

 

Seriously doubt it was the factory service manual. What I posted should give you what you need. Enjoy!