I have a lowered truck and have done it twice now. The ones that are gonna give you the most trouble are closest to the firewall. Take off both wheels and pass side fw, made a lot more room, to get at it. I didnt use an ext. on #3, you can get right up in there if you remove the fw and just use a swivel. The same for the driver side, no ext. on closest to fw. I have JBA headers which made changing the plugs a major PITA cause of the thick flange. The last time I changed out the plugs I did it like this in an hour. Change `em out with your truck ice cold and thread `em back in with your fingers first and you shouldnt have any trouble.
Edit: I did the first two on the drivers side from the top, the third from the ww.
Last edited by robert ray69; 01-20-2009 at 06:17 AM.