Air Lift's spanner wrench allows you to adjust the overall height of your threaded strut and shock bodies. The 44mm version is typically used for Air Lift's Performance Rear Shocks while the 46mm and 50mm versions are generally used for the Performance Front Struts. If you need a spanner wrench and you're not sure which one you need exactly, feel free to contact a Bag Riders Air Ride Specialist for assistance!
Air Lift no longer sells replacement spanners; these are not Air Lift brand but will work with your Air Lift suspension.