I just bought some from lurkerblaze on e-bay. You might want to give him a PM. I also saw that ATK had them on there website. I think they were $36 for the front & $36 for the rear.
LurkerBlaze is the man to talk to. He has a barn full is what he told me. Granted that was last Feb or March. But if Doug (THE SITE SPONSOR) has some buy from him.