Rick, For some reason it will only allow me to contact you thru the visitor message center. Can you shed some insight on a prototype 30 pound boost gauge for the GNX, I can shoot you over a pic. It is a SW gauge and has Buick GNX Turbo on the face. Also I a rebuilding a GNX rear end suspension. Do you know the exact bushings that were used? Were they common G-body off the shelf or special order?