The front suspension in these trucks had only very slight changes from the previous body design. They are still using a coil over strut in the front on 2WD and 4WD models. Lower them with coils, control arms or struts. Just use some caution on the amount of drop on the 4WDs due to the CV axles. But just to keep everybody on their toes, in 2014 they changed the lower strut mount meaning that you can no longer get a replacement strut and if you go with control arms you need to use them with a strut adapter.
The rear is once again very similar to the 2004-08 models but with enough minor changes to require different part numbers for everything except the shackles. So you can get 2 inches drop on 2WD by replacing the shackles, 3 inches drop on the 4WD by using shackles and removing the blocks and anything farther than that requires a flip kit to give 4 to 7 inches of drop. Keep in mind that if you use a 2WD flip kit on a 4WD truck you are going to get extra drop that will equal the height of the factory block that you removed so that 5 inch flip might end up being 6.5 inches.