Help differentiating between these bumpers

[Calabek]

Hey guys! Just want to know why these two bumpers are different. I assume that one's facelift and pre-facelift.

But, the pre-facelift would be 86-87 and the facelift would be 88-89? Is this correct? And if so, are they interchangable?

I have this bumper:



And I want to put this bumper on instead:



NOTE: these are stock images, not actually my car.

So I have an 87 model. Will it fit? Do I need to make modifications? Pros and cons?

[88lxi-shortram]

if im not mistaken they are interchangable but you have to change the support bar along with it. you are correct with the year ranges as well.

[Calabek]

if im not mistaken they are interchangable but you have to change the support bar along with it. you are correct with the year ranges as well.

Thanks for your help.