This tool provides an estimated value for how much a vehicle’s rear suspension may compress or lower under specific loading conditions. For instance, when towing a trailer or carrying heavy cargo in the trunk, the back of the vehicle will typically sink lower than its unloaded height. The instrument quantifies this drop in ride height.
Accurately predicting this phenomenon is critical for several reasons. It helps maintain safe headlight aiming, preventing blinding oncoming drivers. Understanding the amount of lowering also aids in ensuring sufficient ground clearance, preventing undercarriage damage from road hazards or uneven terrain. Furthermore, it can highlight situations where modifications like stiffer springs or air suspension systems may be necessary to maintain optimal handling and stability when loaded.