OK, after I replace the rear pads (worn to the metal), new rotoflex, new ujoint, new gearbox mount (last one was not even there anymore, this weird sound appeared It goes faster as I step on the gas. I am wondering if it is the rear rotor that is binding with the pads? Yes, I greased the Ujoint. I am dumb-founded.
Here is the link.

 

Dude that's horrible, you do the front by joints yet?, getting trans in place now has the front drive shaft squeaking?

If front drive shaft let's loose kiss transmission goodbye, big hole

IMO do front u joints

 

I replaced the rear ujoint. But I did drive it with the front shaft, no rear shaft, to move the rover, and no squeeks.

 

You need to do some in person trouble shooting.
Is it engine related? Belt or pulley? Does it happen when revving the engine in Park?
Is it drivetrain related? Does the squeak coincide with tire rotation or is it faster than that?
Make sure the rotors aren't rubbing on the dust shields.
Did you grease the new U-joint?

 

remove the shaft and take it around the block see if it makes noise.
sounds like tin check the backing plates.
also sounds wheel related, your drive shaft would be spinning fast than that,
jmho

 

That sound is in drive line for sure and speed/rotation related does not sound to me like dragging brake pads

How slow can you drive and have the noise?
If its at walking speed I would walk while someone drives to try and pin point a wheel or if sounds from under truck

I still say front drive shaft, bone dry u joints at the transfer case end

 

I am going to pull the shaft tonite and replace the ujoint. MIght be installer mistake when doing the install. I do remember now that a few pins did fall into the cap while being pressed. Then, those pins were put back to where they were suppose to go. Ihope that why it is squeeking.

 

So at this point what u joints have been replaced

 

I'm going with U-joint, but on the odd chance check the rear rotor mudshields. Might have bent 1 into the rotor when you replaced the wheel. Had it happen on a RRC and it made a similar squeak sound.