Quote:
Originally Posted by SD455DJ
There are physical differences in the housings. The 70-early thru 72 had 12-pin harness connection slots while the late-'72 up had a 16-pin slot. Also, the clock adjustment knob is black on 70-71, chrome on 72-up...I believe. Your 73 dash harness should have the 16 pin connector (harmonica) and would work with any late '72-up gauge/tach cluster housing.
Dennis
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Thank You! These pictures are gold to me. I had found images of reproduction contact films on line and had downloaded them for comparison, but with different image sizes and resolutions, it wasn’t nearly as helpful as this.
So if I’ve got a 16 pin harness and connector, I can use a 72-76 gauge cluster?
I’m betting more than one person on this forum knows when GM went from a 160 speedo to a lower top number - are 74 speedos still 160?
Thank you again for this reply - this is all making more sense to me now.