1970 GMC steering column wiring harness mount

[Electro72]

Curious. Why are the plugs curved? Seams like it would mount on the column.

['68OrangeSunshine]

Originally Posted by Electro72

Curious. Why are the plugs curved? Seams like it would mount on the column.

The curve helped installers slip the plug thru the steering wheel pivot housing [thing like a 1/2 grapefruit] down the underside of the column, [covered by the tin strip] and thru the space under the column before you secure the rubber steering panel gasket and cover steel.
It was later superceded by a flat contact strip that required a curved adapter to mate with the underdash connector. Now obsolete, as period-correct turn signal switch assemblies are available for the aftermarket.
Although I've had my truck since it was 5 years old, I don't recall seeing that underdash securing clip.