To Add Text to a Dimension
Use this procedure to add “prefix” or "suffix" text to a dimension.
1. Select the dimension to modify. The Dimension ribbon tab opens.
2. Click the Dimension Text button. The dimension text panel opens.
3. Use the Prefix and Suffix boxes to surround the dimension text. The system stores the dimension text with the model, and displays it in either Part mode or Assembly mode when you select the feature the dimension is driving.