To find the axle ratio of a *specific* 1973 Plymouth Fury, you would need to:
* Check the vehicle's data plate (or build sheet if available): This is usually located on the driver's side doorjamb or under the hood. It may list the axle ratio.
* Look at the differential tag: This tag is usually located on the differential housing itself. It will have the axle ratio stamped on it.
* Inspect the car's documentation: If you have original paperwork for the vehicle, it may specify the axle ratio.
Without access to the specific vehicle, it's impossible to say what the axle ratio is.