Can you tell me if the oil, transmission, and axle has synthetic?

So, by end of May, I'm going to be doing the pre-roadtrip thing. Making sure everything is good mechanically. Haven't had any problems yet with truck since buying back in November of last year. Now only has 94k miles on it. I'm looking to get some advice on best oils to use in this engine...

04 1500 Hemi approaching90000 miles, and those are very hard miles. Thinking about mking the switch to a synthetic oil. The truck is burning through about 2 quarts of oil per change and im changing it about every 4000 miles. The truck looks leak free and runs pretty good for the abuse ive put...

I remember when I had a Lincoln Mark VIII, the guys in the know on the forums were putting in synthetic ATF, and swearing by it. I did the same, and it seemed fine. Does anyone put synthetic ATF in their Dodge trucks? I have a 2004 1500 with the 5.7 Hemi.... I'm coming up on 30k miles, and...