I LOVE my 2004 Explorer Sportrac.
Bigger box would be great but pulls everything I have (utility trailer for bike/sled, and 17' alum boat package) with ease. Great 4 wheel drive and lots of room in the back seat for my boys (booster seat and child seat) and sometimes my wife too when the dog gets shotgun lol. Now, my one complaint....It is maxed at 16" tires. You would have to lengthen the axles or put a super lift kit into it to go bigger.