Yeh, i didn't know how to do it hence why i asked lol. I want to learn. I watched lots of videos and how to's, but most of them were taking the caliper off, and i know skylines you can do it without having to take it off.
Anyways,
I followed the first few steps of this guide
http://www.skylinesaustralia.com/forums/topic/231627-r34-gtt-front-rotor-and-pad-replacement/
and worked really well. It was a struggle getting the old pads off, they had the extra metal plates behind them and made a tight fit. After a bit of fiddling around, i got them off. Had to push the pistons around to fit the new pads in though lol so annoying!
I do have a question though. Are the extra metal plates (i think they're called shims?) necessary? Like do i need to put them back onto the new pads? If so, how would i go about doing that, since it was incredibly tight enough fitting the new ones ON!