If you go to your main public library and go to the reference section, you should find Mitchell auto repair manuals with complete electrical diagrams for most all vehicles.
Please be more specific. Are you looking for a diagram? Do you need to know what it means? Are you having a problem with vacuum system?.
Not likely as GM restyled the Caprice/Impala slightly in 1980.
81 27,3 9,3,3 3,3,3,3
The Electric Company - 1971 81 1-81 was released on: USA: 14 February 1972
1981 sportster oil line diagram
The Electric Company - 1971 471 4-81 was released on: USA: 10 February 1975
The Electric Company - 1971 81A 5-81 was released on: USA: 9 February 1976
The Electric Company - 1971 341 3-81 was released on: USA: 11 February 1974
The Electric Company - 1971 81B 6-81 was released on: USA: 7 February 1977
If I can remember it correctly, there were 4418 81 Chevy Caprice 2 door Landeau Edition...if I'm wrong please correct me here...
To find 60% of 81, multiply 81 by 0.6.
find the prime factorization to the number 81