Diff between 918's and 915's

Part # CC26915-16
Outside Diameter (O.D.): 1.290"/1.060"
Inside Diameter (I.D.): .885"/.656"
Installed Pressure: 105 lbs @ 1.800"
Coil Bind: 1.085"
Maximum Lift: 0.625"
Part # CC26918-16
Outside Diameter (O.D.): 1.290"/1.060"
Inside Diameter (I.D.): .885"/.656"
Installed Pressure: 130 lbs @ 1.800"
Coil Bind: 1.085"
Maximum Lift: 0.625"


