Well, there isnt 8 switches, for an independant wheel system like these diagrams show there is only 4. Up/Down for each wheel. You could rig something like you are talking about, but it would require lots of sensors and elecrical work.
Getting 4 wheels at a set PSI isnt hard. Just watch the gauge, air up or down and drive.
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1978 Money Pit - CUSTOM DELUXE!!!!
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