Whenever possible, make judgements and conclusions based on measurements. Measure the wheel alignment to prevent uneven tyre wear or incorrect steering wheel alignment. If there are any deviations, use a tram-tracking gauge and measure the body parts. If there is any twisting to the body, measure with a frame centring gauge.

To measure body dimensions, use a universal tram gauge and convex tool. Body Measuring Dimension/Opening Repair Chart: Frame Repair Chart: Diagonal measurement: