This airspring has a load capacity of 800lbs @ 100psi

Min Height: 3.5″
Ride Height: 5-6″
Max Height: 9″
Bag Diameter: 4″
Air Fitting Port: 1/8″ NPT
Lower Bolt Hole – 3/8″-16

Note for all sleeve style airsprings:
An external bumpstop and an extension stop (limiting strap or the shock absorber) MUST be used to prevent the airspring from exceeding the compressed or extended dimensions. If these dimensions are exceeded, severe damage to the airspring, and possibly the vehicle, will result.