My question is will this week's stuff once of push the piston all the way back in?
Wait..What? I'm assuming you're asking will it push back in and work fine? Yes it will, you have to open the bleeder screw and push it back in, and re-bleed the brakes. Make them TIGHT. And you said the bolts that you didn't loosen(on the caliper) came out?
2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come. 2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits. Sold.