* 7.5-inch differential: Typically holds around 1.7 to 2.0 pints (approximately 0.85 to 1.0 quarts) of gear oil.
* 8.8-inch differential: Typically holds around 3.0 to 3.3 pints (approximately 1.5 to 1.65 quarts) of gear oil.
To find out which differential your Ranger has:
1. Check your owner's manual: This is the most reliable source.
2. Look at the differential tag: The tag is usually located on the differential cover. It will have information about the gear ratio and sometimes the type of differential.
3. Measure the diameter of the differential cover: An 8.8-inch differential will have a larger diameter cover than a 7.5-inch differential, but this method is less precise.
Once you determine the size of your differential, you can find the correct amount of oil in a repair manual or online resources specific to 1997 Ford Rangers. Always use the correct type of gear oil specified for your differential. This information will also be in your owner's manual or can be found online.
