1978 Cordoba restification

I am building a 1978 Cordoba. I need to know if 75-76 quarter extensions will physically work on the car with the bumper, filler, etc.
Also, my car has the black strip across the front and rear bumpers. What bumpers that are just plain chrome will interchange and work on my car?
Thank you in advance.

I own a '78 and '76 Cordoba and as far as i can see the rear extensions should be interchangeable between the two years. I also have a '79 t top Cordoba that i would like to put the older front end because i prefer the round headlights to the square, i will probably change the taillights and extensions as well. In order to change the front from square to round headlights, I will have to replace the fenders and hood from the older cordoba as well. As for the bumpers, chrysler offered the option of with or without the black rubber strip. The only bumper that will inter change with the cordoba is the dodge charger from 1975 to 1977. Hope this answers your questions.

Qtr extensions:

4015854-5 R/L 1978-79
3795362-3 R/L 1975-77

rear bumper

4056152 1978-79 used w/o nerf strip

Charger and Magnum those years are different