Broken strut mounts

Can anyone tell me why I have broken front strut mounts
after getting a wheel allignment?
This has happened twice on my 1999 Camry.

did u get a newer front strut mounts for ur car.....

I replaced them with a part I bought new at
my local Napa parts store. The second time I bought a new one off the internet.
They looked exactly like what came off originally.

is ur strut mounts make noise.....how is ur strut mounts broken

I'm not real sure how they work, it appears they are a rupper bushing
sealed in a metal housing. The strut shaft goes up through the center and
is held with a hex nut. This allows some movement at the top but softens it.
The mount is bolted to the body with 3 bolts, inside the engine compartment.
When the rubber loosens inside the housing you get a clunking that's really
hard to tell where it's coming from. I replaced the struts, tie rod ends and ball joints
before I figured it out. The strut mounts are over $100.00 apiece from Napa.
Once you hear that clunking there's no mistaking what it is.
I just can't figure how an allignment can possibly break them, ther's nothing
at the mount that's adjustable.

try toyotaparts4u.com they have the oem Updated Upper Strut Mount(Updated design to eliminate noise occurrence from front suspension.)for 59.99 each.....and remeber get a upper strut mount bearing too becasuse it doesnt come with it ...its $33 a piece....not really sure wut happen to ur car.....but last time i forgot to install bearing...my car make alot noise and sometimes i cant even turn the streeing wheels....after i put the bearing back on everything is fine again.....