Ask the mechanic to attach switchable microphones to various parts of
the car then take it for a drive. He should be able to isolate the
source quickly.


adla11 wrote:
> Hi, does anyone have an opinion about this? One mechanic I spoke to
> said it's highly probable that the grinding sound I hear for the first
> couple of minutes of driving the car (the sound then dissipates after a
> couple of minutes) means that the LSD needs to be replaced.
>
> Another said it MIGHT need to be replaced, but changing the diff oil
> might solve the problem.
>
> We're talking about a 1989 Toyota Cressida, with about 120,000/miles.
>
> Neither of the mechs actually physically inspected the diff, but they
> both DO know my car rather well. I'm just not sure why one is so sure
> it needs to be replaced. Maybe it's based on the expected lifespan of
> this part?
>
> Thanksya for any ideas.