I also would not have any thing but a 4X4, dont use it that much, but when I do need it, I am glad I got it. I have a 2002 Ford F150 Super Crew with a 5.4. Rides like a car, pleaty of room for the grand kids, all kinds of power for towing and gets a big ol 10 to 13 MPG with or with out a boat.
A couple of time's out on the sand bar's at Wolf Creek it kept me out of big trouble. I fish a small lake that only has a mud bank to launch, and with out it, I could not take the boat out of the water.
Dont know what year F150 you are looking at, but Google: Ford F150 Spark Plug Blow Out, or follow this link:
http://www.consumeraffairs.com/autom...ord_spark.html
I wish someone had told me about this, I would of saved about 4 grand in motor work.
Billy