96 S10 blazer rattle and noise
 

Hello hoping to get a rattle fixed not sure where it's coming exactly. Starts when you hit a bump on road then I hear it rattle while driving and then continues in driveway even in park. Thinking something in the exhaust system. Sound is like the noise when you tow an empty trailer rattle maybe a little high pitched.
Truck has low miles 67000 miles orginal exhaust but recently a new catalytic converter. Just looking for ideas what to check.
1st post.

Had a shop fix the rattle. The shop said when the new cat was installed the heat shield was too close to the frame and when the exhaust heated up and bump happened it would rub on chassis.
Simple fix cut some sheild. Just like to provide feedback.

This is helpful. I think I have the same issue.