how do i remove the rear rotor on a 2006 g35 sedan?

 

It may be the parking brake is holding it on there. Make sure the car is in neutral with something stopping it from rolling and that the parking brake isn't engaged or pushed down at all (this makes the parking brake not hold onto the rotor) then you should be able to gently knock it off from the backside with a hammer or heavy rubber mallet.
if that doesn't do the trick spray some penetrating oil on the rotor where the lugs stick through and let it soak.

 

This trick worked for me on my friends back rotors that had been on the car for almost 8 years. Just don't have your face in front of the rotor when it pops off, it makes a pretty loud sonic pop that almost blew my ear drum and left my jaw sore.

 

or you can hit it between the studs with the lug nuts on if your scared youll break or damage your rotor

 

on my 2005 coupe 6mt it took me 1 hour to remove the rotors after removing the wheel.

Long story short, drop some wd40 between the lug nut and rotors area and put parking brake down. then bang the rotors out with a hammer.

 

thanks guys. I put new rotors on so i beat the old ones with a heavy hammer till they came off.

 

Beating on the rotors with a BFH can sometimes damage your bearings .. safer to use a rotor puller .. just a FYI
http://www.ntxtools.com/network-tool.../OTC-6980.html

 

^^^ Good point. I removed mine by using a heavy rubber hammer and hammering in a circular movement so as not to bang on one side to much. Also squirted PB Blaster and when I ran out, used Rust Reaper. The next day they were easily removed.

Not bad for a 115lbs chica.

 

Impressive ... a dead blow hammer would have been easier. Sounds like you did good