Ok , diagnosed the noise we were hearing, took all tires off and guess what grease all over the pass rear brakes..Axle seal went I'm assuming. Now, can i just replace seal and all is good, or is bearing shot now? Need some help, never got into this type of project before..Darn, just replaced the fluid in rear diff last week and all looked good. So guys where do I go from here?

Wheels turn opposite way, and if I turn the one with seal out, back and forth, has quite a bit of play..

GRRR..