My car (FWD) has a torn rubber boot covering the passenger's side CV joint.
The mechanic said it wasn't possible to silicon it up or anything - it had to be replaced, at a cost comparable to that of replacing the joint entirely (minus parts of course).
He also said that if I did nothing, it would dry up within about a month because the grease lubricating it would get flung out the tear in the boot.
Is this all correct, and what should I do?