Driveline hum?!?

[general x]

When i drive my 92 4 door 4x4 explorer i get a hum at about 70 kilometers an hour, it doesnt always happen at 70 but latly the sound has been occuring all the time at 70. The faster i go the louder it gets and (im not positive) i think its pulling the truck to one side at 100km. The drivers side brake rotor has terrible gashes in it from losing the pad on the brake pads for a week (ugh) but i think its the driveline. any ideas? The truck has manual locking locking hubs and is otherwise stock Thx

 

[general x]

anybody?

 

[general x]

bumpity

 

[MrShorty]

Are the hubs in the lock or the free position? If in the free position, are you certain that they are disengaging?
And I can't help but think that it could be that chewed up rotor. It will be hard, in a forum like this, for me to eliminate the rotor as a possible cause until it's fixed. At this point I'd fix what I knew to be broken, then work on the unknowns.

 

[general x]

Yeah the hubs are unlocked, i put duct tape from the front driveshaft to the radius arms and it never ripped so the front driveshaft isent spinning, i bought a new rotor and am going to install it when i have a second rotor and new pads. Sadly i think the humming is coming from a leak in my rear window on the hatch (sadly because im gunna feel stupid if thats the problem )

 

[Fred Garvin]

An tire outta balance?

Just a suggestion.