Hate to bring an old post back from the dead but, 4Runners need front wheel alignment, lets break it down their are 3 adjustments on each front wheel,
camber: the wheels look like this with negative camber / - \ BMW's or a 350Z have more negative for cornering just look at them, \ - / that would be considered positive and thats what on like daily drivers but each car has a factory spec setting.
caster: best described as what makes the wheels/steering wheel return to center after a turn, basically look at the front wheels on a shopping cart thats caster.
toe: thats either pigeon toed, walking with your toes pointed in or dragging the inside of the tire, ever see a pair of shoes that the inside of the sole is worn more then the outside, and duck toed would be walking with your toes out, driving and your dragging the outside of the tires
So their you have it, only the front wheels should have 1 of those 3 adjustments, sometime certain vehicle don't have adjustments for all 3, my pathfinders only had toe adjustments but later on they came out with a camber kit, caster is left alone only touched if you crash otherwise it stays, camber and toe are the 2 focus points.
Trucks like 4Runners don't have 4 wheel alignment or any truck with a solid axle, a camry or corolla does why cause you can find adjustment on the rear wheels, what adjustments are on a solid axle.
The machine goes on all 4 wheels but thats just to use the laser pin points and see where the wheels are and find out where it's at to put it back to spec, but you can't adjust a solid axle, ask the guy to show you what adjustments he made to the rear, their are no nuts that you can turn to make the wheels in the rear pivot out or in, their solid.