It's not a Chevy issue, it's mine but, I was installing a Roadmaster base plate to tow the Equinox behind the motorhome. On the passenger side sub frame a bolt had to be removed and a new one installed that held a bracket. The original bolt came out clean, still had good thread to it. The replacement did not thread up into the frame correctly and now is stuck. Can't pull it out, can't thread it up. SO, what I am asking is if ANYONE has the schematics for the front subframe that shows the internal workings. I'm trying to see if the frame has connections that may have re- routed the bolt. Didn't have the issue on the other side and I did everything correctly. Now I have a frame issue and I can't trust the car. I know I might have to go to a frame shop but I would like to fix it myself. Anyone have the schematics?

 

Found the issue. A threaded part that was tack welded to the top of the frame had broken free and I just grabbed a couple of threads.. An access hole (well hidden) was found so, using an allen wrench to jam the part still, I was able to thread the bolt up and get it torqued. It cost me a case of beer to fix but I get to help drink it. All is good! Nice to have friends who are car nuts like me!