Best Way to Straighten Bent Bumper Flanges on Frame?

A large sanitation truck, box truck, or trailer ripped and twisted my T4R's plate bumper. No cameras, no videos from any adjacent buildings or businesses showing the accident. Missed everything on my vehicle except they managed to grab 1/4" of the edge of my bumper wing and rip the shit out of it. No notes left.

Luckily insurance (Allstate) has me covered so I have a new bumper coming in soon (10 weeks).

Went to a frame specialist where they hung gauges and then did an alignment. No twists or bends on the frame. The only damage other than bumper are the two bumper mounting flanges. These are the two thin flanges where the steel bumper is mounted onto. They are bent outwards a little bit and I'll need to pound them straight to get a good fitment with the new bumper.

Anyone have experience with this? What would be a method to get them straight as possible?

Thanks!

 

Heat and pull

Find a good one on a used 4Runner cut your bent one off weld the good one on.

All depends how perfect it needs to be for you .

 

Bend the other side!! matching TUSK!!!

 

The ones on my Tacoma bent after a few years of winching.

Heat, hammer, patience.
I then took a flat piece of steel (roughly 1/8" thick), drilled holes in it to clear the bolts, and welded it up as reinforcement to the frame. It seems to have improved the mounts.

 

I'll try to the heat and BFH method. It'll never be at as straight as factory but I'll need to close enough so the new bumper with align correctly.

 

Turns out Toyota sells replacement frame rail bumper brackets. If the heat/hammer method doesnt turn out right for me I can always cut the old brackets off and weld news back on.

https://parts.toyota.com/p/Toyota__/Frame-Rail-Bracket-Right/63143773/5113560040.html

 

I would insist the insurance company replace them, along with the bumper. Failing that, I would look at finding some used replacements. I went through that when I bent the rear bumper on mine. EBay had the part I needed, at a reasonable price.