After more work than it should have been, I found out via Braun that the full assembly for the rear liftbags is not available anynore. After some tooth pulling, they finally let me know the OEM part number for the bag. Goodyear 1S5-006. This is no longer made either, but there seems to be stock available. Some parts outfits are cross referencing to a firestone part number which doesn't look anything like this.

I'm throwing this out there so maybe the info doesn't get lost in the sands of time. hope it helps.

In the next couple of weeks, I'll be redoing the air system top to bottom. I'll take pix as I go.