My dash is flickering, lights up scrambled. Sometimes it works fine, then
it starts scrambling all over the place. I remember a member had a site that
showed how to repair the ground as I think this may be the cause. It showed
a step by step with photos on how to do this. But I can't find it anymore can
you guys help.

 

I had a V regulator that toasted itself,.... same symptoms.
http://www.corvettedashclusterservice.com http://batee.cc.umr.edu/corvette/

They are old links,... i.e. Not sure they are still there.

 

The second link should be: http://www.batee.com/corvette/dcrg/

I also had a problem like yours. It ended up being the ground, but it was because of the clip that the lower circuit board clips into on the upper circuit board. It had melted a bit and the ground wasn't connecting all the time, so you might want to check that too.