73-87 Insterment bezels

[BADAZ chevy guy]

I remember reading a post 'someplace' that talked about all the differences in bezels from year to year from 73-87. Wiper sw, head light sw location etc. I know there's options w/wo air cond, but what are the other differences?

[zieg85]

73-80 81-83 84-88 89-91.  AC versus non-AC.  Woodgrain in the early years, brushed aluminum, a goldish brushed aluminum in the Scottsdale, then woodgrain in the 89-91 again.

[BADAZ chevy guy]

I remember sometime between 73-80 the head light sw and the wiper sw were moved just slightly. That's where the problem is. I need to know which years are the same as 77?

[zieg85]

I am sure the 73-80 experts will chime in.  I mostly know the later 81 on up stuff, sorry

[Irish_Alley]

77-83 should work. the wipers got moved to the column in 84. i cant tell you the difference in the 73-76 but they do require a different pigtail than the 77-83. i made mine work didnt have to rewire anything just the pigtail is longer and has to be moved. but afaik the turn signal stalk is the same on the 73-83

[Captkaos]

I have this infor somewhere but can't find it. 
From memory it is something like 73-74, 75-76, 77-80, 81-83, 84-88, 89-91.