Door courtesy light switches
 

What years are these supposed to be on and were they standard or options? LMC says they were available 70-72 however we have a 72 cab that doesn't have the switches in it. So were just available on Cheyenne Super's and CST's from 70-72 or where they available on all CST's and Cheynenne Supers from 67-72?

Never standard, I think optional from 69 and up...maybe 68.
Pain in the rear withoput I think. 2 of my 3 have/had the switches.

oh yeah, should they be on both doors or just drivers?

Both.
The switches are available in most of the catalogs, and the harness is a piggy back one that may be repoduced, and if not, easily taken from another truck in a wrecking yard.

Where do you connect the wires to?

the dome light wireing harness is white and orange. under your dash the white and orange wires have a plug in and just unplug that plug, put a orange wire to go from orange on one plug to orange on the other, and white wire should come out one plug, split to each switch, and to the other plug, you should just go pick up the little harness from a junkyard and it is easy to figure out, by the way, if you are drilling holes for the switches, you need a pipe thread tap. number 8 pipe? no, i dont know, good luck, Ben

this option was not available in 68 yet

Thanks Randy...I wasn't sure. http://64.246.42.114/vboard/images/icons/icon14.gif