The drivetrain warranty of the 2009 Dodge Challenger is 3 yr./ 36000 mi..
The 2009 Dodge Challenger has a 5 yr./ 100000 mi. warranty against rust.
The 2009 Dodge Durango has a 3 yr./ 36000 mi. basic warranty.
The 2009 Dodge Charger has a 3 yr./ 36000 mi. basic warranty.
The 2009 Dodge Avenger has a 3 yr./ 36000 mi. basic warranty.
The 2009 Dodge Journey has a 3 yr./ 36000 mi. basic warranty.
The 2009 Dodge Grand-Caravan has a 3 yr./ 36000 mi. basic warranty.
The 2009 Dodge Challenger has a V6 engine.
The 2009 Dodge Challenger has 24 valves.
The 2009 Dodge Challenger has a 5-speed automatic.
The 2009 Dodge Challenger is a gas-powered vehicle.
Take it to the dealer. With the life time warranty, why do you want to risk doing it yourself?