Are they all breaking on the same side of the car? What brand of links are being used to replace? How do your front stabilizer bushings look? Is your stabilizer bar stock or upgraded?
Ok, how do you know it is actually breaking? Hope you don't say by sound b/c I'd ask how do you know it may not be something else . A pic would speak more.
Because the mechanic told me it was "broken"... Heres a few more questions for the OP to answer: Has it always been on just one side that the link breaks? Have you always gone back to the same shop to get the car fixed? Why would a mechanic tell you it looks normal after he has completed the same repair 3 times in one year?