I went back and found one of our discussions on it back in September. I copied and pasted one of my replies below including an interesting story on it:
"Chevys are well known to be easy to work on, but you are tackling one of hardest job I've ever worked on. From the 1953 to 1973 Full Sizes Chevy cars that I usually work on, the '69 and '70 Dash Cluster is definitely my least favorite.
By the way, did you discover the little trap doors that are hiding some of the screws?
Funny story I'll add in here. After I finished taking out the one I worked on, I went on one of the Impala sites to see what some of the members there had to say about it.
One of the replies was a story about a member's uncle. He said that he worked as a mechanic at one of the Chevy Dealerships when one day he got a work order for a '69 or '70 Dash. He said his uncle worked on it and worked on it and did not say a word to anyone, but once he finally finished, he put the paperwork down on the counter and told the service manager that if they ever give him another job like that, he would quit, lol."
-Parting Out over 75 '58 to '73 Full Size Chevy Cars-
-National Impala Association
-Vintage Chevrolet Club of America