I got into an accident which bent my unibody about 1/2" back on the front. THe t-tops did not break or come loose, but I've heard that the bar between the t-tops could be bent or messed up even if there is no visual damage apparent. How can I check this?

 

Most of the time if the roof is twisted it will crack on the top rear back corners above the window. and also the tops will be either more difficult to remove and put in (when locking them down).

 

There are no cracks that I see, so I think next weekend I will pull the headliner down and see if the t-bar is misaligned or cracked or anything like that.