I wanted AIR RIDE on all 4 corners, but using a stock k-frame suspension instead of replacing the entire unit took some modifications. The recommended shock from RIDETECH had a 4" bag to clear the a-arms during suspension travel. A few math calculations revealed that the air pressure required to lift the front end off the ground would cause a very stiff ride. I decided to re-calc using 5" bags and found I could lift a 1,000 lbs more @ the same air pressure. SO began the modifications to move the upper shock mount and change the a-arms to clear the 5" bags. The results were amazing. The car sits a ride height with about 80-85 psi. PERFECT!