The correct answer is take measurements, and verify yourself. Most of the parts will be direct fit as the engine and driveline are all orientated the same. Exhaust will be almost identical but will require some slight modification. Remember that same complete driveline and the K-Frame it is mounted to is the same in all three cars.(But only for those 4 model years). The suspension and rear driveshaft are the only things besides the body that differ on the QX..{(not many know what a hidden gem it was for a few years) the only car faster in its class was the Porshe Meccan Turbo S}.
Robrizok is a moron, and shouldn't be answering questions. My God man, I hope you don't walk off the edge of something, since you clearly don't read and comprehend things...