What is the axle gear ratio on a 1986 grand wagoneer with a360 engine 3 speed automatic?

There wasn't a single axle gear ratio for all 1986 Grand Wagoneers with the 360 engine and 3-speed automatic transmission. The ratio varied depending on options selected at the time of purchase (like intended use and tire size). Common ratios included 2.73, 3.07, and 3.55.

To know the *exact* ratio for a specific vehicle, you'd need to:

* Check the vehicle's documentation: The original window sticker or owner's manual might list the axle ratio.

* Look for a tag on the differential: The differential housing itself usually has a tag indicating the gear ratio.

* Perform a calculation: Jack up the vehicle, rotate the driveshaft one full revolution, and count the number of times the tire rotates. This method can give an approximation.

Without access to the specific vehicle, it's impossible to say definitively what the axle gear ratio is.