I cannot get the pinch bolt at the bottom on the intermediate shaft to detach from the rack and pinion.. I have used a disc grinder and effectively separated the 2 parts of the pinch bolt, still wont move. Im replacing the rack and the int. shaft so I just need advice on getting it off the rack...

I have a 2005 Malibu LS 3.5L V6 with 215,000 miles. Since it’s been getting hotter out I’ve noticed my temp gauge going passed its usual “operating temperature” resting spot. So I turn on the heater and it cools right down. I’m pretty sure my radiator is partially clogged. I’ve tried back...