I just put the LS1 driveshaft I took out of my 02 WS6 in my 89 Iroc. On the way home I can feel the driveshaft rubbing the exhaust. Its all stock except for a flow master muffler. We did a fuel pump today as well and had to cut the exhaust and re weld it. I was just wondering if anyone else was running a LS1 driveshaft and had this problem. I'm hoping I can just adjust it some and get it to stop. Thanks