I bought some late 70's (with headrest) seats that I want to put into my 1971 FJ40 to replace the bench seat and put a Tuffy console in. For anyone who has done this, do I need to drill new holes or can I use any existing holes from my bench seat? Any other words of wisdom? I haven't bought the Tuffy console yet so don't know exactly how much room I need to leave and don't want to drill more than I have to. Thanks!