I've finally blown the Powermaster, and had enough of it. I'm preparing to do the Vacuum swap, so I went to the junk yard and bought an entire master cylinder/booster and pedal out of an 1984 GMC Callebro (The GMC El Camino). Will this fit the GN? I'm assuming that it will, being G-Body and all, but thought that I would varify before I rip the Powermaster out and have an "unstoppable" car. Thanks!