The Dana 44 and the closely related 10-Bolt are two of the most commonly used front axles around. It comes as no surprise that the aftermarket provides such a multitude of readily-available upgrades.
Only one thing is clear about why knuckles crack, pop, and crunch: there are gas bubbles involved. Whether the noise comes from the birth or burst of those bubbles has been a source of simmering ...
You know how your mother always told you not to crack your knuckles because it would give you arthritis or some other horrible thing and you gave her that look and she said to stop or your face would ...