Welcome to an exclusive club.I have a J68 Road Runner.Ck the vin numbers against the numbers in the different locations around the car.Just to make sure its what it says it is.There are only four holes that mount the louvers,two on each side..Look in the trunk.Those louvers are $1,500 and only one person makes them,when you can get them.If you want to call me I might be able to help you figure it out.PM me.