As above coz my osf cv joint is clicking but if it goes completely will it still drive the rear wheels or will the car go nowhere, I know I should get a new one but the damage is done now and there's no fixing that one so I'm just hoping it will last till I find a new one 

If it's just clickin and not knocking It'll take forever'ish to fail if still greased and driven sensibly, but just buy a new one and fit it they are as cheap as chips

I also have no idea if it will still drive if it fails completely other than the chance that you'll probably have a driveshaft flailing around under your car smashing everything to bits

I had a front cv fall apart on my uk turbo . It will move but I had to nurse it at 2k for the 3 miles home . It made a hell'va noise and I was lucky it didn't fubar anything else tbh .

It will probably wind your central diff up and you'd be better off fitting a new one asap imo .

Cheers guys I will put a wanted post up in a bit thanks