Right Rear turn signal is out. Though the Turn signal and the Brake light are the same bulb and the Brake light does work.
Front right signal is working fine though i Am getting the fast blink on the signal there and on the dash.
No idea what i need to replace. Any help would be .. helpful

 

Not sure if you repaired this by now but in case you haven't.
Replace the rear bulb.

The filament has probably fallen down and causing the affect.

You can try that bulb in the working side to rule it out.

If the bulb is good then look at the wiring from the switch back.