While installing a lift kit on my 1990 YJ I found these tubes hanging as seen in the picture except the green one which snapped as soon as I tried to plug in the other 2. Tried to trace them back and they are so brittle that every time I touch them they break. They appear to go back under the cab area above the transfer case. I'm not much of a mechanic and this is my first jeep (a retirement project) can someone point me in the right direction? Thanks