Spark Plug Change in the 2008 Jeep Grand Cherokee

We were due for new spark plugs in the 2008 Jeep Grand Cherokee 5.7L.  The big engine meant 16 plugs!  The dealership wanted $599 to do it but Jack wanted to try to do it himself.  The parts were $150.  $100 for the plugs and $50 for a torque socket set.  We went for it and Jack did it all himself with limited supervision and for sure did a better job than what we would have gotten at the dealer.