ceh527

Yeah, I finally figured it out last night. Will be putting in a set of SP-534s gapped to .030.

FordFasha2013

I gapped my stock plugs yesterday and was pretty easy...gaping was kind of a pain cause so small and adjusting can be pain unless u have all the right tools.

ceh527

Swapped them out yesterday with new SP-534s at .030. Was fairly easy once you get the hang of it and can contort yourself (and make the sacrifice to the knuckle gods before gloving up) to get at the back two. All of the COPs came off really easily, didn't replace the boots (they all looked good), and 4/6 of the plugs were in very tight. I was hoping to see some variance in the gaps but all from the factory were right around .035-.037 - did find a plug with two cracks in the insulation, so it was a seemingly good exercise to change them all out.

FordFasha2013

How many miles on ur truck ?

ceh527

Mid-33,000 miles. When I get home I'll post some pics of the plugs I took out, but they all looked really good - except, of course, for the cracks.

Andrade

iTrader: (3)

Is this the right plug fellas?

FordFasha2013

Yup. U just wanna gap them to .030 for best results. I gapped mine this weekend and def runs smoother.

sluggo1

Most guys stated the 534's came gapped at .030 out of the box. Not sure where this .035 info is coming from. Now I'll have to double check the 534's I just installed

brucesears

Mine came gapped at .030 but I narrowed them down to .028, just as several others have done.

BigBlueOx

Wow! I know what I'm going to do now when I get some free time! What poor quality control with the gaping.