Best magnum MPG?

I am hopping, hopping that this thread can stay smooth :glasses7: I am not placing blame anywhere :coffee2:
But ! Lets keep it nice men, this is a good thread that I may have to clean up so others can enjoy the info here :color: ok.. Thank you :glasses7:

I do know that a bad worn out or badly set up rear end can suck the mpg out of any car/truck :D