Just writing this tread so if anyone in the future searches for it they can find it
step one: the night before use penetrating oil to loosen everything up
step two: get a long bolt, approx 3 or four inches and the same diameter as the shaft on the brake cam.
step three: remove old cam. If the rivits are difficult, sneak a hacksaw blade between the bushing and the arm attached to the cam and cut it off then pull out.
step four: slide your new bushing on the bolt all the way to the head and then slide that whole assembly into the hole where the cam had just been. Start tapping the head of the bolt. This pushes the head of the bolt onto the new bushing which then hits the old bushing. In a few taps your new bushing will be where your old one just was and your old one will fall out on the floor. If you have done this correctly, the old bushing should make a "ping" when hitting the floor.
Step 5: remove the bolt and insert your new cam. Then rerivit your arm onto the cam.
disclamer: some persons may observe a different sound when their old bushing hits the ground. some reported sounds have been "clang" and "kaping!"
thank you for your time. Happy T-ing
Nathan, thanks for the information----I need to replace the bushings on my '15 this winter---almost sounds too easy! Joe