2002 Ranger Spark Plugs

I was going to change the plugs on my ranger w/ 4.0 V6 and it looks fairly easy with the exception of 1 or 2 plugs on the left side of the engine facing the front of the vehicle. It does not look like I can get a ratchet in there to take out the last plug closest to the firewall. Do I need to remove anything to get to that last plug, or should I just try a stuby ratchet? I have a repair manual which is not very good, which was from one of the major auto parts chains. Any ideas, or sites that have more detailed instructions?