I asked AirLift and they said these bags work by filling between the coils. By the way these bags have 20 psi in them.
My original email...
Hello,
I just installed my air bags and followed the instruction manual. One step told me to cut the bump stop on the truck which I did and now when I installed the airbags in the new OME ARB 2890 Old Man Emu Coil Springs there is a large 2 inch gap between the bottom and top of the airbag. Did I do something wrong during the installation? Was I supposed to not cut the bump stop or should I have added the large rubber discs inside the coils? I believe that my original Toyota springs are shorter than the OME 2890 and may be the reason for this. I guess I'm trying to understand if the airbags should be touching at the top and bottom of the spring perches with 5-20 psi. I have a couple pictures I took on the installation that I can share with Air Lift on this to help troubleshoot.
Thank you,
Richard
Their response... Does this even make sense?
Hello,
The bags are made to expand outward and fill the gaps between the coils. So when loaded the coil can not compress keeping the vehicle at ride height. The bags will not expand up and down so a gap between the bag and the spring mount will not effect the way the system works.