Where do I find a new Accumulator?

[TBRTGP]

Hi,
I have the dreaded blinking "Anti-Lock" light feature on my car now.  :icon_rolleyes: Though, it is only periodic, sometimes no blinking or steady light at all. But I have put in orders to three different internet vendors only to have them cancel and tell me that GM has discontinued both the accumulator and pressure switch for our cars.   How can GM legally do that?  or does the bogus 10 year rule apply to safety equipment too?  Where do you find a new accumulator now?   I called my local GM parts dealer and they quoted me a price of $283.00 and don't have a record of discontinuation for that part?  But it's over $100 more than what I was hoping to pay on the internet for one.   This sucks..   :gr_guns:  I like my car it has only 95k on it and runs like a champ.. needs a X-over pipe and a few other things but this doubtful brake problem makes me question the wisdom of driving the car..  :icon_frown:

Tim