IMO i think toyota 4x4s are the best trucks for offroading from the factory. they have alot of ground clearance, are light weight, and reliable. the springs look like they sag alot in the rear so i would say all you need to do is some 2" shackles for the rear and if your that worried about traction lock the rear. if you lock the front it will stress the CV shafts and theres a chance of snapping them