I just bought an 2007 laramie 4x4 ram 350 quad cab long box (built 07/06) is there anything undesireable about this build date? ie emmisions/transmissions/rearends etc?as compared to an '06 or newer 07?thank you.

 

All that stuff is the same on your truck as the 06's. I could be wrong but I don't think the 07 trucks had the notorious fuel vent problem letting road grime in your fuel tank like the early build 06s did. You got a good truck have fun with it.