Gurgle/rumble at low rpm/under load

[michaelreed]

When I'm accelerating at low rpm or going up a hill I hear a gurgle/rumble type sound coming from the front end. Doesn't sound like a rattle.. Not sure what it could be any ideas?

 

[michaelreed]

Nobody has any theories?

 

[JimDirt]

I have the same thing, happened ever since I towed through the mountains. Anyone else ever experience this?