New parking brake cable failure

[FlameOut]

I went to use my parking brake today, and the pedal went right to the floor. At first I thought maybe a cable had snapped underneath the truck, but after inspecting, everything was fine there. I then found out that this brand new cable, with at most, a dozen or so uses, had come apart inside the cab at the pedal assembly. The cable is still fine, it was that little piece (furrell?) somehow came off of the end of the cable. Is there anyway to repair this? It seems like a very tight fit, as I wasn't even able to slide it back onto the cable

I added these photos, because I'm sure my description has some saying, "huh?"

I bought the cables(s) back in Sept 2014 from Inline tube, but just recently have been able to drive the truck, so there is very little use on these cables