coil spacers

has ne1 used coil spacers on their h2? supposed to lift it 3 inches n tha rear.  i hav air suspension. will they stil work? ne ideas?

Air sensors will cause it to try and compensate. Look for air sensor mod on **** forum
 
3" is too much unless you install longer shocks.

i also have air ride in the rear and last weekend i cranked my t bars in front and picked it up a little on the back with the level control

Coil spacers are dangerous and outlawed in a few states.  I would not use them on anything for any reason.