Sweet! I luckily didn't have any problems other than having to be extremely careful removing one or two. No breaks! I didn't have the extractor though, so the truck would have been stuck for a while if I messed up. I had the infamous "transmission slipping" and the spark plugs fixed it.
I had some problems after the change with coil packs getting bad contact. Did you see anything like this? It caused rough idleing and misfiring throughout rpm range. Fiddling with the coil packs fixed it, but it's nerve racking to be in the middle of nowhere and it suddenly starts it up again. Would it be worth is to replace the coil packs (at $80 a piece)?