They may be accessible from under the dash if your arms are slim and you are limber (which lets me out as a repair man). Your other altenative is to remove the instrument cluster to get the back of it. In both cases a factory Service manual would be helpful.
I would recommend buying the full set if you are going to be restoring this car.
I just scrapped out my perfect bodied '85 Impala just this week (not a speck of rust on the car due to my Ziebarting the car when I first bought it new). And my '89 Caprice that was my wife's old squad car went to the crusher last week as I am trying to thin out the herd a little (I still have three third gen Camaros out there (one a full blown trailered race car) two K20 4WD Suburbans and a 1977 Nova two door sedan still out in the barn (my 1994 Mercedes C350 four door sedan left yesterday on it's trip to Japan as scrap metal).
There are not many people on this board who own a 1977-'90 Chevy Impala-Caprice (1985 was the last year Chevy called the full sized car an Impala untill the Impala SS came out again in 1994).
I'm with ya, I'm also a larger man, my arms prob would never fit. Guess I'll be ripping off the cluster.
Any suggestions about on service manuals? I'd like to get my hands on a factory one, but ideas on a good, cheap one?
That's a nice little collection though, and I love Novas!
And I have noticed that this model is not so common, not really something I'm complaining about though, I love my Impala and how you don't see many of them.
I liked them because it was basically a 1970 Chevelle in disguise. Same size and weight body, and used a lot of standard Chevelle parts when the heavier duty Impala part wasn't used instead.
Drop in a big block and you have a car that handles and performs like a 1970 Chevelle SS only it looks like a tired clapped out old Taxi cab that no one gives a second look to. Made for a lot of surprised expressions on people's faces when I was driving it on the street.