Turn Signal/Brake light issue

[csolomon71]

I recently rewired my 71 chevy c10 using the american auto wire classic update kit and I'm having an issue with my brake lights. when i turn on my right blinker only not my left i blow the fuse for my brake/courtesy lights. When i first put my column back together i forgot to put my cancelling came back in and would blow the brake fuse immediately when i pushed the brakes. Putting the cancelling cam back in corrected that short but still have the other. Could there be some type of insulating part I,m missing? During my trouble shooting i pulled the turn signal switch out of the column and the problem goes away (turn signal switch is new).