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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: LTZ C20 on October 21, 2011, 08:49:40 pm

Title: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 21, 2011, 08:49:40 pm
Ok, so I'm new. As my first order of business, does anyone have information about or know where I can get information on the correct mounting location for factory cab clearance lights. My truck doesn't have them but I'm going to put a set on and need the placement information. Thanks ya'll.
Title: Re: Installing Cab Roof Clearance Lights
Post by: Blazin on October 22, 2011, 12:24:34 am
I would go to a salvage yard or someone you know that has them and messure it out.
Title: Re: Installing Cab Roof Clearance Lights
Post by: bigchevyc30 on October 22, 2011, 12:44:40 am
if u want i can measure the ones on my dually for you
Title: Re: Installing Cab Roof Clearance Lights
Post by: bake74 on October 22, 2011, 08:50:29 am
     Here is a write up on the lights you are looking for.  look at page 2 for the specific location on placement of lights.

     http://www.gorecon.com/download_file.php?download_key=37
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 22, 2011, 03:16:29 pm
Thanks bake74 but i think the measurements are different. My truck is much older. I have a 79, standard cab, long bed. Bigchevyc30, if your dually is of the same body style as my truck, the measurements would be very much appreciated. If ya'll guys know of any where else I can find the info for around the 79 time period, that would be very much appreciated also. Thanks everyone.
Title: Re: Installing Cab Roof Clearance Lights
Post by: bigchevyc30 on October 22, 2011, 03:29:24 pm
you have the round head lights right
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 22, 2011, 03:31:30 pm
yes i do, my truck is a 79, i see yours is an 80, practically identical. by the way, 366 big block, VERY COOL.
Title: Re: Installing Cab Roof Clearance Lights
Post by: bigchevyc30 on October 22, 2011, 03:38:21 pm
thanks ill get u pics and measurements
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 22, 2011, 03:40:34 pm
your welcome and thank you. i dont have the lights yet. my birthday is next weekend, hopefully i will get them then or soon after, so when ever u get around to it in the next two weeks is cool. thanks again.
Title: Re: Installing Cab Roof Clearance Lights
Post by: bigchevyc30 on October 22, 2011, 04:32:40 pm
heres the pics and measurements they are in inches hope you can read them
(http://i1234.photobucket.com/albums/ff410/redneck1362/IMG_0393.jpg)
(http://i1234.photobucket.com/albums/ff410/redneck1362/IMG_0392-1.jpg)
Title: Re: Installing Cab Roof Clearance Lights
Post by: big bear on October 22, 2011, 06:55:47 pm
kool thread...i wondered this as well.
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 22, 2011, 07:29:36 pm
Thanks so much Bigchevyc30. These are the lights that I should be getting. They aren't the originals, but they are super slick looking.

I will just have to make adjustments in measurements if the are to much of a difference in size to the originals. I dought they are to much different though, I'm guessing they are reletively the same size. Thanks again.
Title: Re: Installing Cab Roof Clearance Lights
Post by: slammed79 on October 22, 2011, 08:10:58 pm
That being said, I also offer this advice, 90% of the products I have ever used from them are sub-par quality. I'd look around elsewhere for just about anything you may need for your truck, ESPECIALLY body panels.
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 22, 2011, 09:07:21 pm
slammed79, i'm sorry but i dont understand what exactly your saying.
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on October 22, 2011, 09:14:16 pm
i reread what you have posted an it makes sense now. my apologies for the violation. wont happen again, thanks for the heads up.
Title: Re: Installing Cab Roof Clearance Lights
Post by: Jason S on October 22, 2011, 11:45:30 pm
If you're trying to go with the stock look, take a close look at the photograph and note that the outside clearance lamps angle out (i.e., not set straight with the cab).

Your local auto salvage may have a truck with the correct GM lamps and wiring for less money than the replacement-style clearance lamps. You could also make templates off the cab to verify hole location...
 
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on November 09, 2011, 06:31:20 pm
Would anyone happen to know the diameter of the base of the stock cab roof lights like in the above dually picture?
Title: Re: Installing Cab Roof Clearance Lights
Post by: Jason S on November 13, 2011, 03:51:35 pm
The total outside diameter of the rubber base is nearly 3 1/2 inches
(https://lh6.googleusercontent.com/-MRCjdQsxKhE/TsA6T-ZWHXI/AAAAAAAAAEw/tilkm8Voyr8/s512/DSC00732.JPG)

The socket is approximately 3/4 inches
(https://lh4.googleusercontent.com/-EGSt-qL7M0A/TsA6WaY6EmI/AAAAAAAAAE0/XFWE6yxUJng/s512/DSC00734.JPG)

The lens diameter is approximately 3 1/4 inches (across mounting location on bottom)
(https://lh5.googleusercontent.com/-I6zT1zF3Fjs/TsA6cgQGj-I/AAAAAAAAAE4/CGx_EjB_210/s720/DSC00735.JPG)
Title: Re: Installing Cab Roof Clearance Lights
Post by: LTZ C20 on November 17, 2011, 12:46:35 am
Thanks Jason, that is very helpful information! That helps a lot. I'll let you guys know when their on. :)