*The 22-485 is a lower arch spring than the 22-489. For a higher arched spring you can view the 22-489 by clicking HERE
*This spring was not originally offered and is an upgrade for the Colorado and Canyon.
The centerbolt on the Colorado and Canyon is originally 5/16 and installing this spring will require modification to the centerbolt head or axle seat hole as it comes with a 3/8 centerbolt.