What are these parts ?

[Brad32486]

My mustangs have similar braces but are triangle shaped and go from the firewall to each right/left strut tower and across the front between strut towers.

They are called strut tower braces and help reduce flex from a unibody car.

But it's not a unibody....

 

[gooffeyguy]

But it's not a unibody...

I'm aware of that. Read the rest of the posts in the thread, especially #16

Post in thread 'What are these parts ?' https://www.tahoeyukonforum.com/threads/what-are-these-parts.133224/post-1667268