definitely not. ive gone through a few sets.
If you have the cheap aftermarket CV's from advance or autozone then that is your problem. they are not made well and the steel is cheap and not heat treated properly. i know of a couple people that had the same probelm as you and it was all due to the cheap CV axles. get some OEM toyota ones and you will be much better off. FWIW, i'm still on my originals and i have yet to break a CV.
just because i said that, i will probably break both next time i go :spider: