* Check your owner's manual: This is the most reliable source.
* Look at a parts diagram: Online parts websites (like those of Ford dealers or major auto parts stores) often have diagrams showing dimensions. You'll likely need your VIN to ensure you're looking at the correct specifications.
* Measure it yourself: Use a measuring tape to measure the distance between the centers of the wheels on both the front and rear axles.
Without knowing the specific trim level and configuration of your 1993 Ford Ranger, I cannot provide a precise track width.