There is a 3/4" hole on either side, underneath the rear seat. The hole lines up with a corresponding half moon notch on the rear spring mounting bracket on the underneath side.
I was just wondering what the purpose was. Is it supposed to be plugged with something?
This should be in the Fisher Body assembly book but mine is 45 miles away. I thought by now somebody would have answered but I'll look tomorrow and let you know.
Thanks in advance.