Enter the required values for the upright top and bottom pivot points.

Upright coordinates are vehicle independent and are represented with lateral, vertical and longitudinal values. The datums for the upright are the wheel mounting flange and the axle (or hub) centreline.

All upright measurements are with the upright at zero camber, castor and toe position.

Again, imagine the upright viewed from the front of the vehicle. Lateral values are positive inboard of the wheel mounting flange, vertical and longitudinal values are measured from the axle centreline.

For the usual design of upright, the top pivot point(s) is above the axle centreline, and the bottom pivot point(s) is below the axle centreline. If the vertical axis is positive upward, then the top pivot vertical dimension will be positive and the bottom pivot vertical dimension will be negative; if the vertical axis is positive downward, then the top pivot vertical dimension will be negative and the bottom pivot vertical dimension will be positive.

Longitudinal values are measured from the axle centreline in side view, and will be positive to the rear, negative to the front (if the longitudinal axis is specified as +ve rear); or will be positive to the front, negative to the rear (if the longitudinal axis is specified as +ve front).

If you have been provided with upright mounting points in vehicle coordinates, use the V2U tool to convert back to upright coordinates.

Depending on the particular geometry type, there will be 3, 4 or 5 pivot mounting points.