Electrical problems 73 duster

Just a possibility,
Wiring harness is very close to some of the top screws on the instrument cluster.
Pull the cluster back out and see if one of the screws has stabbed and cut a wire.
(Ask me how I know)
Well, I pulled the cluster back out and then put back in and made progress. The car starts and the lights in the cluster are working, except now the blinkers and blinker indicators in the cluster are not working. The emergency flashers work but I get nothing when I try the left and right blinkers.