I do not mean to demean or correct Chuck in any way, but sometimes there is more than one way to accomplish a task. I have replaced that switch on
several GMCs and other GM Vehicles. I watched but did not assist, when Bruce replaced his at a GMC rally. I also replaced one in an Auto Zone
parking lot in under 30 minutes. You could possibly do this in less time than it will take me to type this note.
You will need a couple of special tools. A steering wheel puller and a special lock plate spring compressor. Both are available for free loan from
AutoZone. Also the switch is usually in stock at Autozone for under $30.00. You will need a deep well socket to remove the nut holding the steering
wheel on and another one too turn the borrowed tools. I do not remember the sizes but it is probably about 3/4" and some thing smaller for the tools.
Just bring a 3/8 drive deep well socket set. You also will need a larger size Phillips screwdriver Probably #2 or #3. Also a set of diagonal
pliers to cut off the connector on the old switch cable.
One gotya' before you start. The connector on the new cable and the old cable might not be the same. The two types look identical but the spacing
between the pins are not the same. I suggest that you unplug the cable on the lower steering column and make sure the new cable will plug in. If it
fits then proceed with switch replacement.
The difference between the two connectors is the plastic piece that holds the pins. You can pull the pins out of the old and new ones and install the
old plastic piece on the new cable. There are little tabs on each pin to press with a very small screw driver to get them to release and slide out.
The last one I did was at Chuck Boyd's house on a steering column he was building. I also saw an adapter cable included in the box for one of these I
bought, but I do not remember the brand and I did not use it.
Switch Replacement:
Remove the nut holding the wheel on and install the wheel puller. Turn the puller main shaft and the wheel will easily pop off. Install the spring
compression tool on the steering shaft and turn. Remove the circular clip holding the lock plate to the shaft and the remove the tool. The plate can
now be removed. Remove the turn signal lever (one screw) and remove the two screws holding the switch to the steering column assembly. Go to the
bottom of the steering column unplug the cable and off the connector. Tape a STRONG string to the bundle of wires going to the switch. Now pull the
switch and it will easily come out leaving you a string in it's former path. Attach the new connector and cable to the string and tape the connector
flat against the cable. Tape it as tight as possible against the cable. Now pull the string. If it gets stuck, stop, pull it back out, tape that
connection even tighter and try again. Everything from there on is to just install the removed pieces in the reverse order of when you took them off.
Good Luck. It is really easier than it sounds. I am a terrible typist. Please excuse any typos that you find.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana