brake light help?

1989 broncoll brake light and blinker was out so i replaced the 1157 bulb and i have blinkers now and running lights but no brake light on that side,what could it be i cleaned the socket and double checked the bulb but still no brake light on that side other side worx fine any leads appreciated thnx bb

The brake and turn signal use the same filament in the bulb. Since the turn signal works we know that the wiring from the switch to the bulb is good. We also know that the brake light works on the other side so the brake switch and wiring to the turn signal switch are also fine. The only thing left is the turn signal switch.

While pushing the brake pedal wiggle the turn signal switch and see if the brake light starts to work. If it does you just confirmed a bad turn signal switch.

u were right but u want to hear something funny?right lite was the one that was out came in here wrote u,got ur answer went back out there and the right brake lite was working but the left wasnt now :( so i pulled the bulb put a new one in and both brake lites and signals work now lol .....i dont know maybe the switch caused both bulbs to blow? i kno they were old but?anyway to new bulbs and alls ok for now will write u again cause this is an on going project,next is the 302 swap pray for me will ya? :)thnx guys i really do appreciate all info this is how im learning.later bb