I have a 1995 range rover county lwb that makes a load grinding noise when braking from 60mph and up but doesn't when I'm going under that I have replaced the brake pads and that didn't do much it started happening when I get my tires rotated

 

I would investigate the rotor dust shield... I may have gotten bent a little during the brake pad installation... Otherwise... I would check to see if the shop tightened your lug nuts completely... I've had a shop that put a tire on by hand and never re-tightened after dropping the vehice... so the tire and consequently the rotor were able to lean at an angle that caused a gringing when it turned a certain way.

 

Checked what you said and nothing seemed off heres a link to a youtube video of what it sounds like its kinda hard to hear so turn your volume up this only happens when im going faster than 55 mph doesnt happen at slower speeds and it also does it sometimes when i let off the gas and dont apply the brakes i should also mention that my anti lock and tc light is on and the diagnostics code for the anti lock was 2-8

 

I've had a minivan that made that sound after I rotated the tires. It wasn't that loud on the minivan but we figured out that it was uneven tire wear and slight alignment issue. Got the front end aligned and the sound almost went away... after a month of driving the sound was gone. Check your tie rods to make sure the tires aren't towing in when you brake. Hope this helps.

Clay