According to the parts manual I have, the two hoses for the 5.7L are
68000978AA
68000979AA

For the 3.7 and 4.7 you'd only need p/n 55037965AB

This is all according to the 2008 manual. These parts may have been superseded or changed....id throw them in an online parts search and see if they're listed for your specific year/model.