Not sure what's going on
 

2012 ram 2500 6.7L just about 45K on the OD.
While driving mostly on the interstate but sometimes out in town it feels like the truck will come out of gear the engine will clatter go back into gear and carry-on. Also sometimes I'll get a noise that is a little bit quieter than the clatter it seems like it comes from the right side and it almost sounds like the truck is farting or like the air governor on an 18 wheeler. I am at a loss for what it could be and just today my cruise control started acting up to where it works when it wants to one day it works the next day it doesn't but if I turn the truck off and then started again it will work anybody got any ideas?