well while removing the engine on my blazer I found a broken bod mount bolt were the body and frame go together. It it on the driver's side just in the front of the door. I thought of drilling a 1/2 inch hole in the floor to get to it but not sure what to do. The bolt is broken in half , but there is nothing sticking out past the frame to get a hold of. what do you all think is the best way to repair this?

 

need some pics.

 

drill a small hole and use a good easy-out... SOAK it in penetrating lube and give it some good vibration(air chisel if you have one, if not, wack it with a hammer a few times to let the penetrating lube penetrate better)