mossinit 
2006 Nissan Frontier King Cab SE 4dr King Cab 4WD SB (4.0L 6cyl 6M)
Fullsized Midsize
 The drive train on this truck is rock solid.  The 4.0 begs to be revved but still has surplus power off idle.  I optioned the 6 speed manual that came mated to a Dana 44 rear axle, heavy duty stuff for a midsized truck.  I have used my truck extensively off road in the Adirondacks and found its size ideal for mountain fire roads.