Rear Brake Caliper Rebuild

Been trying to take apart my rear brake calipers to get them rebuilt, but as it turns out, it’s not as easy as it seems. I’ve been having trouble figuring out how to take out the mechanism for the parking brake. There’s a little bit that holds it in there, and without it, I could pull it straight out. Does anyone have any clue as to how I’m supposed to remove this? The seals need to be replaced, as the mechanism itself is binding due to the seal ripping

 

I too had a rear caliper seal fail. I scored 2 from FattiMotorWorks.com used and low mile. Problem solved.