wooo hoo got it done!
Okay so here is what I learned.
To replace the crank pulley I had to remove the radiator in order to have plenty of space to work.
Get your Z on ramps, pull the hand brake, chuck the rear wheels, put the car into your highest gear 4th or 5th.
If you have a skid plate remove it. To me I had an easier time working form under the car. I also had my front bumper cover off ( I have a fiberglass body kit) , for visual purposes.
Drain the radiator. There is a drain pug at the bottom. After it drains go ahead and disconnect the rubber tube and let that drain too.
Remove the plastic Shroud around the radiator for the fan.
remove all rubber tubing from the radiator and unbolt the radiator itself and pull it out.
Then I took I unbolted the fan, 4 small bolts. You can avoid this if you like but that fan will get in your way constantly.
Take a 27mm socket wrench with a cheater or pipe to extend it and loosen the bolt about half way.
You will then use a pulley puller to pull it off. Get a 3 clawed one, the bolt type universal ones don't come with the tiny bolts needed for these cars. clamp it onto the front of the pulley, place a wrench onto the bolt to prevent it from moving. use another wrench to tighten the crank puller. As it comes off beware that there is a small metal piece that is used to line up the pulley. It will fall out and its a pain to put back in curved side up.
Once the crank pulley is ready to reinstall push up that small metal pieace and cram it up with a small screw driver. Slide in the new pulley. Then tap in with a rubber malet. Tighten to 240 lbs of torque. and put it all back together.
And yay no more grinding noise!!!