I have a 1976 FJ40with the stock disc brake front end. I need to replace my front brake rotors and I am looking at a few different options. New OEM replacement rotors for a 75-80 FJ40 ($BLING$). Aftermarket slotted and cross drilled rotors, such as DBA (same money as new OEM, but I hear these warp). New OEM V6 4Runner rotors (not sure if I need to have later steering knuckles and the associated calipers to use these). I have tried searching. Is the later style rotor taller than the earleir style? Thanks!