Yaaaa that's it only chry's just pushed in and could be taken out easily!!!:cheers:
General Motors little brothers {Pontiac, Buick and Oldsmobile} were
notorious for using incorrectly calibrated electronic Tachometers.
The {1968 thru 1972} AC Delco circuit boards were purposely set up that way.
And 'no' Potentiometer to re-adjust the Tach.
The Tachometer would show 5000 RPM's, but the Engine was revving
at 500 RPM's less........ at 4500.
To prevent those Engines from going........'BOOOM'















