Taillight trouble

[noreastfish]

My 70 Challenger right side brake lights aren't working. Left side brake lights work. All of the taillights work and the blinkers also work. I did replace the turn signal assembly a month or so ago. Checked the blinkers but I didn't check the brake lights. Not sure if this problem could be related to that. Also noticed that the reverse lights also stopped working . No power to the reverse light wire. So I'm thinking about staying
Checking that at the transmission.  Any ideas would be appreciated. 

[70 Challenger Lover]

I've had a similar problem before. The first time, I didn't have the flat plug from the column fully seated. The second time, it was a faulty turn signal switch. In my case, just jiggling the hazard switch caused weird results.

[Chryco Psycho]

if the right side turn signals work then the circuit is OK ,, the brake light goes through the same circuit so the power goes to the brae light switch & into the turn signal switch , the switch interupts the brake circuit to the right taillight . so the problem seems to have to be in the turn signal switch .