Loose front sway bar, normal?

My front sway bar on both sides has quite a bit of play when I grab it and rattle it around. I was inspecting the bushings when I noticed the approx. 1/2 in. play. Is this normal?

Also I was trying to find replacement bushings and the ones in the Perfomance/Automotion catalogue don't look anything like the ones I have. (I suppose I could call them, but they never know anything) Anyway, they seem to be the same as the rear sway bar bushings. I suppose I could just get the 22mm rear busings? Anyone out there have some insight on this?

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Zach
77 911S 3.2