Hope some one can offer useful advice. The problem is brake light/turn signal on my 69. Up until recently all was well, however, recently the right rear brake light/turn signal, e-flasher has quit lighting. All running/signal lights work except the right rear. On the right rear the tail light functions and the top filament on the 1157 bulb lights. The right rear brake light/signs/flasher do not function and the lower filament does not light up. Checked for disconnected wires,poor grounds and obvious corrosion on connections, and damaged wires. All negative. Be advised thar I am severely electrically challenged so I could be wrong somewhere. Ruled out flasher unit under dash as all other signals work. Don,t know what the problem could be unless maybe a problem with the tail light socket. Thanks in advance for any help.