Ok so while lifting my truck, A friend of mine casued my truck to roll off the jack stand. luckly no one was near it and a jack kept my truck from falling on the ground.

So after its all back together I take it for a test drive and find there is a weird off and on hum cumming from the driver side at 50mph+

When I got home I checked everything and what I found were the driver side front wheel doesnt spin freely and takes more effort to spin the wheel. I also found a scuff on the rotor which leads me to believe the rotor did hit the ground.

My tec friend thinks its just the wheel bearings but i feel no play when I wiggle the wheel.

what parts could I have damaged by that rotor hitting the ground?

 

The wheel should not be harder to turn than the right side wheel under same condition. Axle disconnect in 2 hi. If rotor hit ground could easilly damage rotor. Don't believe would damage bearing, however. Could something have hit the caliper and bent brackets? Could you just have a caliper starting to hang up causing drag and noise?

 

if there is a bad spot in the rotor, it would be free then hard free then hard, whenever the bad spot hit the caliper...

My bet would be a bad bearing

 

Thanks for the replies, I dont think the rotor is damnaged because, its equally hard to spin the wheel thruogh the whole rotation. Ill be to busy to look at it for a few days but will report back.

Thanks again