About 15k+ miles on them.. I think 1 might be blown mite not, they're not as stiff as I think they should be. These CAN be rebuilt. NO they are NOT seized, just very dirty. I can clean them, just been lazy.
I'm in the same boat as you, I spent $450 on my type ones... But they only had 50miles on them so it makes it a little better. Still wish I just went with type two's.