i tried to buy a 2004. 5 2500 with a diesel 6 speed posi 3. 73 lwb 4x4 quadcab they told me that i can order one but it will be 4 to 6 months but they do have 2004s availible with the way i want it i just would like to know besides a little more power what makes the 04. 5 betterand what should i look for on the 2004 as far as vibrations i drove a short box stick and loved it. to get the long wheel base stick i have to commit to them finding one and wait for it, they say about 3days to a week does this sound right i called about two dozen dealers they all told me the same, no antispin, no 6 speed availible in the 2004. 5 thanks