These air bags are hard plastic, 4" in diameter.
How could you get them inside the spring without removing it?
Hello B,
Actually they do collapse. You remove the cap they come with and you can kneel on them to deflate them. Then you put the cap back on once you have flattened them out and you work them between the coils. I thought I would need something blunt to push them through (I was considering a wooden spoon so as not to damage them), but I was able to insert them without any help. Once in the coil (stem downwards) you remove the cap again and they expand.
If you look up "Air Lift 1000 install" in Youtube, there are several videos that show you how.
I should mention this installation method was not my idea but came from an amazon.com customer.
Best regards,
JC