you CAN put the 87 clip on, There are some small differences. Wipers, hinge's, and some wiring. I am trying to put together an article for the tech section. I don't know for sure if the harness will clip in to the earlier wiring. My 73 has an 84 dual headlamp front and the wiring fit right into the junction block. does your 87 have the 4 headlamp system? or 2? I just put an 84 nose on my 76, My 84 nose had the 2 headlamp system, so my 76 wiring fit the 84 nose. No wiring issues. There are only 7 wires for the actual nose clip.
1 High beam
2 low beam
3 running lights
4 left turn
5 right turn
6 horn
7 brake pressure switch.
If the harness doesn't clip into the junction block, You can always cut and splice it. Swapping the wipers, hood hinges and cowl panel is a little harder. /forums/images/graemlins/thumb.gif /forums/images/graemlins/thumb.gif