Best off to have the job done at a good shop. It all has to be adjusted and shimmed. If the car has say 290's in the back, then 343's would be good, but then, how much fuel would you really save? The crown as is, gets fairly good milage for the size of car. The cost to change the gears is around 300 to 500 bucks. The lower the gears the harder to take off, but with a set of higher gears, the car will take off easier, thus saving fuel that way. Personally, I don't think you will save what you really want to save.
The 1981 Ford Crown Victoria does not have an Oxygen sensor.
How do you change the starter from a 1998 crown Victoria lx? Click on the link in the "Related links" section of this webpage.
just change the bulb!
Follow the Youtube instructions.
Its in the gas tank.
Drop the fuel tank
6
5 W 30 - according to the 2000 Ford Crown Victoria owners manual ( 5 quarts / 4.7 liters with filter change )
no
Have to remove the oil pan to get to it.
Have to remove the oil pan. It's in there.
Have to remove the oil pan to get to the pump.