I notice at speeds above 45 or so I'm getting a growling sound from the front I think. If I'm on the highway and I'm on the gas it sounds like a bearing noise when I let off the gas it whines. Can I take my front propshaft out to try and diagnose it. I thought it may be front hubs but the noise doesn't change when I turn the wheel and I put it in the air and theres no play in them. I'm thinking more toward the front diff at this point. Any suggestions would help.