The wires that go off the alternator are fused, meaning that will break the circuit by melting.
No, just common knowledge and the right tool's.
( 20.0 U.S. gallons ) according to my Chilton's book for a 1989 Ford Crown Victoria
Yes, they are identical
You can replace the alternator on your 1989 Mercury Cougar by removing the alternator belt. Disconnect the wiring harness from the back of the alternator. Remove the alternator retaining bolts. Reverse the process to install the new alternator.
About two tons.
On a 1989 Ford Crown Victoria : ( there are 5 lugs per wheel , total of 20 )
According to my Chilton's Auto Repair Manual : A 1989 Ford Crown Victoria has a ( 20.0 U.S. gallon gas tank )