I've been experiencing some jolting problems whilst the car is put under load and i pull away whilst making a turn

(some lock on either right or left).

After consultation on here it was suggested that i had a sticky LSD and needed some friction modifier to put in with the oil.

Now I was about to do this when tonight things got a lot more serious.

Now when i have the car in gear and make a turn i get serious jolting from the rear of the car and have a horrible graunching noise which sounds like its coming from the gearbox.

The jolting goes away when you take your foot off the gas pedal however the graunching continues even when free wheeling whilst in gear.

When going in a straight line the noise is not present nor is the jolting.

Whatever it is is really quite bad almost to the point where i think i shouldn't be driving it.

Question is, does this sound like the LSD has gone for definate? If so what can be done about it, is this something that can be fixed or would it need replacing?

Cheers,

Tom