People love trucks, and what’s better than jacking up your truck and throwing some sweet wheels below it. Most people do this by a lift kit or by suspension.

Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. Suspension systems serve a dual purpose; contributing to the car's handling and braking for good active safety and driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations.

Weight transfer during cornering, acceleration or braking is usually calculated per individual wheel and compared with the static weights for the same wheels. Cornering wheel weights requires knowing the static wheel weights and adding or subtracting the unsprung, sprung and jacking forces at each wheel.

Some auto racing circles use false terms, or combine things like jacking forces and sprung weight transfer and call it by terms like side bite. They are either unknowing by ignorance or intentionally confusing competitors by not dealing with vehicle fundamentals and using commonly accepted anthropomorphic terms.

Jacking forces can be thought of as the centripetal force pushing diagonally upward from the tire contact patch into the suspension roll center. The front jacking force is calculated by taking the front sprung weight times the G-force times the front roll center height divided by the front track width. The rear is calculated the same way except at the rear.