Side Members, Front
The dimensions in the table are listed as follows:
Symbol number 1 means that the measurement is taken from the center.
Symbol number 2 means that the measurement is taken from an edge.
Symbol number 3 means that you measure from a cut marking. Measurement takes place from the bottom of the recess. Refer to the illustration above. If only one measuring point symbol is shown it applies to both measuring points. Otherwise the symbols are shown on one side each of the measurement designation in the illustration.