How long until my rear end brakes now that I have noise

[Thewilldog]

About a month ago the rear end of my 01 Z28 started making a "wa wa wa wa wa" sound while driving forward (not in reverse). It's more noticable in the upper gears. I don't have the cash to have it rebuilt right now. So, how much time do I have between now and when the car breaks? Feel's like I've been diagnoised with a terminal disease or something.

[stangslayer98]

its like driving ticking time bomb and u cant see the timer, when it locks up youll know and it will cost you alot more, than if you service it now..

[OreoLt1]

Just as stangslayer98 said, it will be better to have it serviced now b/c it could be just a carrier bearing or a pinion bearing.(simple to r&r) Now if the bearing grenades you risk the cahnce of locking the carrier up which in turn eats the pinion teeth up and you could possibly damage the driveshaft and/or the tranny.