2001 Pontiac Sunfire Exhaust system hanger area

2001 Pontiac Sunfire Automatic 134000 miles

I am trying to find out what I need to keep my exhaust system on the hanger. There is a hanger part that currently slips off of the pin area keeping the exhaust system from getting too close to the road and so when I hit a bump/pothole the hanger comes off the pin area. I have been told it is very easy to get parts to secure it to the pin but I have been unable to have someone tell me realistically how much it will cost me and if it is easy to do myself.

I have also been looking for a guide or spec or whatnot showing exactly what the system and parts look like and so anyone knowing where to go to view it would be great as well.