Rust, repair, jump damage?

[74 Bronco Billy]

If I have rockers with holes above step area, I'm guessing not original to truck, right? Posts are in horrible shape.
The only reason I can think of that the body got mangled above the shock mounts on both rear sides would be aerials, like big jumps? There used to be a 3" BL, now 1" WH BL with 3.5 SP. How do you damage body with 3" lift? Doesn't make sense.

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[AZ73]

The holes are where the weatherstripping clips go. The notch above the rear shock is stock. Every Bronco has both.

 

[kip60]

^x2..Holes are for the weatherstripping