@SlugStang8997:
You're getting a lot of good advice, but let's slow the train for a moment.
For your $$$, did the frame shop find any damage in the cab section of the cab? What we see in the video is damage to the rear section. (Kind of confirms my initial concerns about hit from behind.)
'98-'11 frame are 2 pieces:
3 front sections:
SuperCab
Regular Cab, Long box
Regular Cab, Short box
2 rear sections:
Long box
Short box
If there is no damage to the front section, there is a
Ford procedure to replace the rear section:
It is more easily done with the box off and removing the gas tank (it just unbolts).
You remove the damaged rear section by removing 16 rivets and replacing the 8 rivets on the spring shackles with 1/2" bolts and the ones on the cross member with 7/16" ones. (Ford recommended to use grade 8 bolts)
You will need separate the rear axle from the frame section (Similar to how I cheat with exhaust manifold bolts; I 1st try removing the bolts myself. If they come out, I'm golden. If they don't, I go to spring shop and have them replace the bolts. (some day, I'll have a big enough compressor to run an air chisel, but until then...)
and you will need to undo some wiring/vacuum lines.
The cool part about this is, you can ease your way through the process.
You'll need a grinder, a drill (with 7/16 and 1/2" drill bit), Torx T55 bit, 1/2" drive bar, 8 & 10mm sockets in 3/8" or 1/4" and ratchet, a chisel, a punch and a BFH. (You will need a couple additional sockets to remove/reinstall the rear bumper). Jack and jack stands highly recommended.
You grind off the rivet head (I do an "*", i.e. 3 slices into rivet head, then chisel the "pizza slices" off, followed by grinding flush, but you may just grind flush if you choose. Then take the punch and drive the rest of the rivet out with the big f***ing hammer. At that point, you may ream the hole to replace the rivet with appropriate bolt.
Repeat 15 more times. (Having box at least pushed back a couple feet makes it much more convenient to remove the top rivets; disconnecting the springs at front is recommended too).
The truck always remains drivable. (OK, as the truck is, is drivable, the frame is compromised in the damaged location. As a result, if you were hit from behind, it wouldn't provide the expected resistance. Hence, the concern from the frame shop.)
During the process, I have located a rear frame section from a wrecker (In my earlier picture, they cut the frame just before the joint, so I'm having to repeat the process on the replacement part). The rear frame sections are shorter than box length and its also narrower once the spring shackles are removed. So, it can sit in the box while waiting.
Removing the rivets on the replacement section can be considered the dry run for executing on the truck. If you have the rear section ready, even if you get a shop to do it, it would save them time = you $$$.
Then on D-day, the box is removed, the gas tank dropped, the truck jacked up onto jack stands, the bolts (both frame and springs)/wiring/vacuum undone, the bad section removed, the good one slid in. Everything bolted back together.
I had a very non mechanical buddy help me on the "D-Day" on one of my trucks. He was shocked at how easily the rusty old section came out/new replacement one went in.
The biggest PIA was reinstalling the gas tank (fuel wanted to slosh making it difficult to hold steady while putting bolts in).
The rear frame sections in my earlier picture didn't cost me $500.
Replacing the front 1/2 or whole frame is much more work.