Shouldn't be a problem on 08 but double check the engine build date. Should be on the engine and can be read on the left hand cam cover information sticker. If engine build date after 11/30/07. Then you dodged a bullet. If engine built before then, research like I did for proper precautions to prevent the two piece plug from breaking in the head. I didn't have the engine build date info until I had spend a week looking up how screwed I thought I was. Otherwise I bought an OTC 6900 Ford F-150 Spark Plug Socket and have 3" and 6" extensions handy. I had all eight changed in about an hour. Most places I read said to ensure the engine is fully cooled off before changing the plugs. As usual check the gap. Can't remember what it was. I used 8 Motorcraft SP-509 Spark Plugs off of amazon at $11.60 ea. I made sure that the seller had positive packaging reviews because they can be damaged in shipment. Hope it helps.