Are our brakes really a DIY thing? The reason I ask is when my truck was new, I had the front brake clip rattle. I struggled to remove the bolts that hold the caliper on on the driver side. I needed a breaker bar with an extension for every turn of the bolts. I was hoping that after they came out, it would be fairly easy to reinstall, but no, I needed a breaker bar to install also. I thought I was going to snap the bolts the amount of torque they took just to tighten.
I asked the dealer service guy about this and he said that FCA/Stellantis overdoes the locktite on some vehicles and a 250 psi impact to take off and put back on. I will be replacing the bolts on mine when I do it and I will also tap the holes to clean them for an easier install.
Depends on what you mean by DIY I guess.
My mid torque Impact wrench does 650 ft-lbs and i'm not a mechanic.
I am curious what impact they use that does 36,000 foot pounds... I think you mean 250 foot pounds, which is still way more then the caliper bolts are torqued. To put it in perspective that is more then twice what the wheels are torqued to.
You also said you needed a breakar bar to install them, which should never happen.
Sounds like the bolt got cross threaded and ruined and you put it back on but the damage was done.
If you need a breaker bar to install a bolt, you are doing something wrong and stop, step back, and evaluate what\why you are doing.