Gts25 rear light conversion?

ok im dont like the look of the rear lights on my four door skyline gts25 1991 but i like the 1991 coupe ive been told that if i replace the rear bumper and boot from the coupe i can use the coupe lights on my four door is this true would the bumper boot and lights from the coupe skyline straight bolt onto the 4 door 1991 skyline gts25