Nice truck. As far as advice lets see, I have had 3 of those trucks, two 04's and one 03. The climate controlled seat modules tend to go out. The air suspension on the 03 liked to go low sometimes when parked. The door open/close switch (the part that senses if the door is open or closed) are common on these trucks also. Other than that, no real issues to speak of. A lot of these trucks with the 32 valve (03 and 04) are noisy when they cold start for just a few seconds.