2012 JKU Coil Packs & spark plug question

I read the recent write-up on the 2012 JK tune up ... i have 107k miles on my 2012 JKU daily driver and i've been ticking off the needed maintenance items. Spark plugs were not on my list but they are now after reading that thread.

Question on spark plug gap... i read in a thread (of course cannot find the thread atm) where someone mentioned they run a larger gap. What spark plug gaps are you all running for your 3.6 engines? I've always just gone with OEM specs

How long do the ignition coil packs last? Have any of you replaced them when changing the spark plugs? Is that over kill to replace before they have gone bad?

If you do replace your coil packs, do you go with OEM or are those aftermarket ones better than OEM? or is that really a question like best oil to use? lol

Thanks for your input. This will be my first time diving this deep into my JKU engine bay.
 
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