So I've got a Dakota that likely has the original plugs. I'm wanting to change them out this weekend. Info required: what do you guys recommend for plugs for the 3.9L 6 cylinder engine? And what is the correct gap?

I also have a bit of hesitation around 80 kmph or 50 mph, so I was also thinking about putting a new rotor in at the same time, $2 parts.

What's your thoughts?

 

years ago i experimented with spark plugs in 318s, 360s. but that was a long time ago. but lately the good guys here say to use autolite 3932. small block chrysler work good with .045" gap. if it fails to fire at high RPM drop the gap to .040 or .035. .035 is the factory setting. on the dist cap get some JB-weld and plug the vent hole. is keeps the moister out

 

There should be a sticker somewhere in the engine compartment that lists plugs and gap.