How many gallons is the gas tank on a 1999 ford f150 4.6 liter extended cab?

The gas tank size for a 1999 Ford F-150 with a 4.6L engine and extended cab is typically 26 gallons. However, there's a slight chance it could be slightly different depending on specific trim level and options. Checking the owner's manual or the fuel filler door (sometimes printed there) is the best way to confirm.