What I found out about the o-rings for my Gabriel Hi Jackers Air Shocks is sad. I called the Gabriel Tech-Line (1-800-999-3903) and ask where I could buy replacement o-rings and found out the following. You cannot buy just the o-rings from Gabriel or anywhere, you must buy the entire air line kit, the o-ring is made an odd size therefore you cannot buy them anywhere. I ask the Gabriel tech person what if I am installing the line kit and drop one of the o-rings and cannot find it, his reply was you would have to buy another kit. I said you are telling me I have to spend $16 dollars for a .20 cent o-ring and he then replied it is what it is. This is not right!