RL Lemke
New member
I just did a test of air pressure and the height of the bottom of the hitch. At 0 pressure it is 19 3/8. At 5 PSI it is 19 1/2. Then it is incremental small increases. At 30 PSI it is 20 1/2". I don't think that any sort of big lift is available. Just the ability to compensate for increased hitch and back end loads. I'll try this again when the 4Runner is loaded with luggage and passengers in back.