Im pretty sure that beginning in 01 you didn't have to modify the headlight bucket for the conversion. I just did the conversion on my 02 and love it. I got the wiring harness from suvlihgts.com. Great guy to deal with, he messed up my order, only sent me part for 9004 to 9007, but called him up, and he sent the new parts the next day. So I only have the 9007's hooked up right now, but that in itself is quite a difference. Hope you like the conversion, I think that it was well worht it. James