I bought an adjustable track bar from a guy who had it on his 97 grand. It came with a rc drop bracket which I left connected. The track bar has a heim at the axle end and a bushing that looks exactly like the stock one on the frame side. From all the pictures I've seen it looks like the heim should be connected to the drop bracket. I believe the bar is a rustys track bar. Should I switch it around before driving on it?

 

Yes. The heim goes on the frame mount and the rubber bushing goes in the axle end.

 

Correct

 

Is it different on grand Cherokees or did the guy just have it installed wrong?

 

Guy had it wrong.