There about 2 inch apart I did it that way so that the spring eye does not hit the top wile in top hole and don't stick out the bottom wile in lower hole . And the other answer to your question . Is I don't thank it will hurt anything to run the air shocks on that setup . It will give you even more adjustability . I would even go as far as stated befor in one of the other post and run separate lines to each of the shocks so that you could set one side harder are softer far racing are cruzing
