Adding Factory Cargo Light

[LTZ C20]

Hey all. I am going to be adding a factory cargo light to my 73.

I got a factory harness, unmolested, from a junk yard. I got a new factory cargo lamp assembly from one of the larger parts suppliers. And finally I got an NOS cargo lamp switch. That was a search in itself.

After searching for about 2 weeks, I could only find a few used switches on ebay for way more than they are worth. I finally found a company that is a huge gm parts distributor, they didn't have a switch anymore, but they showed 1 place in Indiana that had 1. I contacted that place, they DID have 1 switch, so I got a brand new, NOS cargo lamp switch, in original box, for 18 dollars, that's including shipping to California. The switch is the black 1 with the white letters that mounts in the B-pillar behind the drivers head.

So now what I need is some measurements. If anyone has some extra parts laying around they can measure that would be great. I need to know the dimensions for the hole in the pillar trim for the switch and that hole's position on the trim panel itself.

The second thing I need is the dimensions for the hole in the back of the cab above the window for the cargo light and it's position left-to-right and top-to-bottom in the sheet metal. That way I can put the appropriate holes the the factory locations.

Also, the cargo light kit came with these rubber bushing type things, they have a metal nut molded into them. My guess is that these "bushings" go into a hole in the cab, then the mounting screws go thru the cargo lamp base and into the metal nuts molded into the "bushing". This helps isolate the cargo lamp from vibrations and doesn't let the power short to ground thru the body. Do I have this correct?

Also, no need to take your trucks apart to make these measures, if there are extra parts or an extra cab the members may have with these holes to measure that would be great. This is just a side project so dismantling your trucks isn't required.

Thanks in advance to all who chime in and help.

[LTZ C20]

Ok so I have an extra B-pillar trim piece, I was gonna use a piece I cut out of it to fill in the seat belt holes in my trim because I only have lap belts and not 3-point belts.

Anyway the extra panel has the location of the switch hole molded into the back. So I'm just gonna map that over to my original trim and that will fix that.
Still need the hole for the lamp above the window.

[Captkaos]

Where did you find the switch?  Manufacturer or was it OEM?

For the external hole, use the gasket for the template.  Take a pic of what you have....

[ehjorten]

I can give you the dimensions for the lamp mounting from my '77.  Taking the lamp off is super easy!

[LTZ C20]

Ehjorten, that would be great. Yes it is easy.

Capt, the switch is an NOS OEM part. As mentioned in my first post I found 1 from a dealer in Indiana. Last one they had, in original GM black, white, blue box. Has a date of 1976 on it. Probably the last new one left in the entire country lol.

Ide post pics put still got that problem, haven't gotten around to creating a photo bucket account or something like that.

[zieg85]

I am going to put this on my shop truck.  I picked it up at a swap meet, don't know what it came off of but it will fit perfectly.

[Captkaos]

Ide post pics put still got that problem, haven't gotten around to creating a photo bucket account or something like that.

Email them to me

[LTZ C20]

Ok.

[roundhouse]

I am going to put this on my shop truck.  I picked it up at a swap meet, don't know what it came off of but it will fit perfectly.

No name or part number on it ?


Sent from my iPhone using Tapatalk

[zieg85]

I am going to put this on my shop truck.  I picked it up at a swap meet, don't know what it came off of but it will fit perfectly.

No name or part number on it ?


Sent from my iPhone using Tapatalk

It has a bar code dated 7/31/2007  25821852  but it doesn't have any other markings on the lens.

[LTZ C20]

That is a third brake/cargo light assembly for a Chevy Colorado or GMC Canyon.

[Captkaos]

I attached the pics.  Sorry for the delay...
Now what were we talking about?

[LTZ C20]

No problem, I'm not sure, I think they were trying to figure out what the light that Zieg posted was off of, but I already posted what it was.

[Captkaos]

Were you asking about mounting it?  Sorry been kinda busy...

[LTZ C20]

It's ok. Yea I got some measurements from another member.