Brake Cable
#1
#2
I never worked on anything that new but I assume it would be like the older F-150s with rear drums. You have to remove the brake drum, loosen up the shoes, pop the springs off, remove the rear shoe, R&R the cables through the backing plate and rear shoe, reassemble and readjust the shoes. Check everything over carefully before putting the drum back on. That's the inside part, you can look the outside part over to see what your against there. This is assuming it's pretty much like the older F-150s.