using a big hydraulic press, and a pie of railroad rail... to straighten a bent frame. Skip the first two minutes of the video, they are just a quick preview of the whole thing. Watch at 1.5 speed or faster

this video shows the hydraulic press used to straighten out the frame, unlike the previous videos I've posted where it was all hammer work

a smashed up semi gets taken apart, what can be saved set aside, then the panel taken apart at the seams, but cutting out the spot welds and using a cutting torch, and using an interesting modified chain hoist to pull the crushed cab open

Skip the first two minutes at least, and change your speed setting to at least 1.5 time

I am in awe of the hand craftsmanship, the fundamental mechanics, and the basic tools used to get the smashed metal panels made right again.... body shops in the USA? Might, but I haven't seen any do this type of work. 

Notice that they don't have a socket wrench, a spot weld drill from Eastman, and no vice grips, just basic blacksmith tools

making a bus the old fashioned way, by hammer and hand. I find this process fascinating. Skip the first 1:40, Increase the playing speed to at least 1.5

I'm not surprised that there are time lapse videos of fundamental mechanics fixing collision damaged trucks in India... it's amazing to watch the blacksmith style repairs to vehicles

these guys sure could benefit from a big mag drill, socket wrenches, and welding helmets

So, 1st, disassembly to the very frame C channels, and removing everything from those

without a magdrill, or a shop with an overhead hoist, and drill press, they worked up a two hand drill and some ingenuity to create a "where ever it's needed" drill press from a 2x4 and chain

and the frame straightening for the squared off welding... impressive simple hand made big clamp, 

and this square steel box for using with a 10 or 20 ton press... wow