How to check if your unibody is straight

[ITMike5.0]

Just wondering if there are measuring points that you can use to check the straightness of the unibody or do you have to take the car to a specialized frame/unibody straightening shop?  I'm just hoping there is a way to check to see if it's off at all before spending money on something I don't need.

Thanks guys

 

[Don C]

https://www.7173mustangs.com/thread-underbody-dimensions?pid=298050#pid298050

 

[ITMike5.0]

https://www.7173mustangs.com/thread-underbody-dimensions?pid=298050#pid298050

Thanks Don, that is helpful

 

[Carolina_Mountain_Mustangs]

Humm I attached to the wrong message, lol.

Here is pencil sketch of the front inner fender and radiator support showing dimensions off a rust free California car for reference.

73_Mustang_Inner_Fender_Measurements.pdf