Parking lights should come on with the headlights. Brake lights work through the turn signal switch under the steering wheel. If you have a copy of the 68 workshop manual, look at the wiring there and follow it from the brake light switch under the dash to the back. Good luck.
68 GT500
68 1/2 CJ Coupe
MCA# 18519
68 GT500
68 1/2 CJ Coupe
MCA# 18519