my bro has an FSJ. you will be very unhappy with the little 4.6 his jeep was a hog with the 360 until he put on a good edlebroke manifold and cam. his f1000 (i think i can call him latter and confirm) has D44's front and rear. his front d44 is closed knuckle, i never have found out if that is good or not. it flexes very well, and has a very good load capacity. he has fit 33's stock.