Moog is better stuff - still can get at good auto parts stores (napa, car quest). Avoid the chinese crap. For the pitman arm - lifts more than about 2-2 1/2 do ok with stock - more than that and you need to start dealing with dropped pitman arms and track bars. The dropped arm helps keep your steering geometry close to stock without binding the joints with a taller susp. lift. From stock, the track bar and drag link are rougly parallel - as your lift goes up, your track bar becomes too short - same for the drag link - to compensate - you can drop (on the frame end) (or raise on the axle end) the track bar, get a longer/adjustable track bar and for the drag link end, well, you can drop the pitman arm - or with the right bits, lengthen the drag link. The easiest/cheapest route is the dropped pitman arm and track bar mounts. As for using a dropped pitman arm without a lift - might cause issues going the other way - resulting in a drag link that's too long for the drop - perhaps not enough room to adjust/compensate and you end up binding the ball joint going the other way. That's my 2 cents. some of the suspension gurus may have more info or set me straight.
