To ensure a proper fit, you need to find wheels with the correct:
* Bolt pattern (PCD): This specifies the number of lug nuts and the diameter of the circle they form. Ford and Dodge used different bolt patterns over the years.
* Wheel offset: This determines how far the wheel's mounting surface is from the center line of the wheel. Incorrect offset can cause rubbing against the suspension or body.
* Center bore: This is the diameter of the hole in the center of the wheel that fits over the hub. An incorrect center bore will prevent the wheel from mounting properly.
You'll need to determine the specific bolt pattern, offset, and center bore for both your 1998 Ford wheels and your Dodge Ram's specifications (found in your owner's manual or online resources). Only if these three specifications match will the wheels fit. Even then, tire size and overall clearance should be considered.