AOS Replacement different for '03, '04?

[demick]

I was wondering if the AOS replacement procedure is different for an '03 or '04 car. I noticed on Pelican that there is a different part listed for '03 and '04 cars as opposed to earlier ones. And the two versions look quite different.

AOS on Pelican

Of course, the pictures may be inaccurate, but I'm wondering if there is any significant difference in the replacement procedures or if there are any additional parts needed for the later version (for instance, I see no bellows in the picture for the later version).

I've only seen replacement writeups for the earlier ones. Anyone done a later one that has any advise?

Thanks in advance!
Demick