8.8 rearend whining noise in reverse

Shut yer trap XP8, this site sucks for tech advice, admit it. I'm sorry I don't have a hot rod noise dictionary. I did mention that it didn't make the noise until I installed the new brakes. It doesn't sound like a moan either, its actually a long drawn out fart squeal low trumpet noise. Is that better creampuff?? Except for a few geniuses on this site like JRICHKER, most of the advice you get on here is lame. Most people treat you like your stupid and ask if you put gear oil in it. Yes I put oil in the rear end. I think I'd cover that before asking on here about my problems. That's because they have no real advice or experience to really give. I only post on here in worse case scenarios when Im just too lazy to just call the manufacturer or its too late at night to do so. When I do post or try to give technical advice about what I'm doing I get 3 dozen clowns telling me it can't be done. EXAMPLE: You can't put that size tire on an 85. You can't put bullits on 87-93 rotors. You can't put a 5-speed behind a big block. You can't put a stock hood over a big block. Well I'm here to say I did them all. Its called do some research, choose your parts carefully and actually do some work. Thanks to my own efforts and little to no help from anyone on this forum I run a 501 BBF with TKO600 5-speed in traffic at 190* in drought infested 95+ daily weather in south texas. My tires don't rub, my car corners like its on rails, and stops on a dime. So eat it wannabe car builders. Dont slap flowmasters, cobra rims and trickflow heads on your "Stang" and think you know anything about custom 5.0 building. God damnit I hate this ****ing site!!!!!!!!!!!!!!!!!!!!!