Ground issue

[Buck hour]

I've just installed my painless wiring kit 10110 on my 77 cj7. The only thing working are the dash lights and the turn signals.. No head lights no engine crank. Could this be a ground issue?? (I have a fiberglass body)

 

[SteelHeadz]

Quite possible. Did you run a ground to the chassis from the battery and a ground from all the components that's bolted to the body that requires body ground?.