There is a noise which sounds like metal schreeching/grinding that I hear after 35mph and up and while I'm pushing the throttle I won't hear it until I let off the throttle though like it's "load dependent".

It's got new front pads and rotors,new rear brakes so is it possibly the carrier bearing or pinion bearing or maybe something in the rear end. Thanks in advance

 

Possibly the G-80 going bad. Mine did the same thing, took the rear apart and the govbomb was coming apart

 

I hope it isn't the rear end! I noticed the carrier bearing has abit of slop in it so in a way I'm hoping it's that but if not then 3.73's next I guess.

 

Check to make sure the wimpy rear backing plates arent rubbing on the rotors. Just did my wifes car and it was just barely touching and it sounded like the wheel was going to fall off or something!!! One tweak with a screwdriver and problem solved.

Had a friend pull his hair out over the rear rotors being machined wrong and the inner lip (by the parking brake) rubbing on the inner part of the backing plate. Had it apart multiple times and the ultimate fix was to grind the rotor for clearance. Parts store rotors...

 

I don't know how long it's been making the noise tbh cuz after leaving a meet one night I decided not to have my radio blaring loud and that's when I first heard the noise.

The rear are drum brakes and did them awhile back but just did the front recently cuz that's where I could have sworn the noise was coming from(they needed to be replaced anyways) but I don't want to keep throwing money here and there so that's why I'm asking for any advise on what it could be.

 

You need to isolate the noise to the front or rear. You said you have drums in the rear??? make sure there not wearing irregular on the shoes.

If its load dependent though it sounds like it may be related to the differential. Put it up on jack stand and spin the wheel's see if you still hear the noise. Also check your differential fluid level. when was the last time you changed it or had it changed???