3.25" Collapsed Height 11" Extended Height 5.875" Max Diameter Available in 1/4", 3/8" and 1/2" NPT 4.75" - 7.75" Optimum Ride Height Up to 2500 Lbs. Force at 115 PSI Straight or Slight Angled Installation Industry Standard Bolt Pattern Machined 6061 Aluminum Caps Rear Suspension Installation Double Play By Universal Air Double Convoluted for Rear Suspension. The Double Play is the perfect choice for your rear suspension that doesn't angle too much. Engineered for an excellent ride quality and higher travel in the same diameter size. Recommended Mounting is directly to the axel in a rear suspension application, or just Infront of the axel on a rear trailing arm setup. Like in a C-10 or Impala. The bag IS NOT designed for a front control arm suspension. The Air House 2 is the recommended bag for front suspension. Higher Travel Double bellow construction greatly increases the travel of the air spring but at the cost for angle capacity and Hi Load applications. Maximum Outside Diameter when compressed is 5.875" and will shrink down to about 5.5" when inflated.