Y-e-s-s-s-s i know he changed the calipers, (& MC) my question is "why" he did that. Seems very strange to me that a truck that new would need calipers already.
Like i said, somethin very fishy goin on here.... possibly the lack of experience...?

 

He said the calipers were replaced because he blew up a piston on one of them. The mc sounds like throwing parts at stuff. Makes me wonder if he bench bled the master

 

I hear ya jeep, i dont think he benchbled the master properly either.
One thing comes to mind, about blowing brake pistons, 24/7 HEAVY FOOT ON THE PEDAL. Which ALSO tells me, thats the reason its going to the floor all the time. These newer dodge trucks dont have what i call super good brakes, they never have. I`ve never owned a chrysler product that ever had good brakes, they`re slightly better than the old days, but NOT by much. Everytime you turn around, warped rotors, pad fade issues. The brakes of today are under rated for the vehicles they put them on. I hate aftermarket stuff, BUT ther ARE some good brake products out there on the market today, just have to be very careful what you buy because ther is also ALOT of chinese junk made brake parts out there too. Dunno, i try not to use my brakes much, that helps to keep them in decent condition for those PANIC STOPS when needed...lol. Anyhow, i hope the OP makes out alright, good working brakes are a huge must over anything else on a vehicle.