bumper interchange ?

[illregal]

does anyone know if the rear bumpers interchange between a 78 regal and cutlass,found these on craigslist,after doin some research,it looks like the front is from a regal,or possibly a cutlass salon,cause the 2 door cutlass has marker lights in the bumper and even the salons look like the go straight across.any help or input would be appreciated

 

[LIMITED 84]

my 79 cutlass calias has no marker lights in front bumper ,i dont think the back bumpers interchange because the cutlass bumper kind of mockes its taillights...be carefull i bought a 4 door rear bumper for my 79 thinking it looked the same but come to find out the bumper fillers would not work one way or another. what year cutlass u working on?