that's correct cause i own a 97 and did the conversion to 98 every thing is different. so the 98 chin won't fit on a 97 bumper. And yes the headlights are diffrent to the 97 are more round and the 98 are more of an oval shape the housing is offset forward cause when I put a 98 bumper on with the 97 ligths still on there was a space gap of around an inch.