it depends if the hatch and lights were from a bubble bak or not...and as for putting 83+ lights on a 79-82, it can be done with no modifications whatsoever. Just bolt up the new lights, and only use one of your old bulbs in the outermost hole(the big red square), take the other bulb and wrap it in tinfoil(loosely) and snug it up behind the panel away from any plastic parts, the only downside is the big red square is now the only taillight bulb, it blinks, turns on with park ligths and brake lights..no cop will know the difference and you havent hacked anything up! you also have to remove the two middle studs on the new taillights, or you could drill holes but i wanted to avoid that..i still have my old lights in mint shape but i wont part with them, i'll post a pic later if anybody cares