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| | | Forums66 Topics128,142 Posts1,056,782 Members48,454 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: Oct 2012 Posts: 77 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 77 | Hello all,
And if you do, can you offer any insight to installing them without the screws showing inside the roof of the cab? Thanks.
Greenman Wood
'61 Apache Longbed Stepside, 235 I-6
"The duty of a patriot is to protect his country from its government." - Thomas Paine
| | | | | Joined: Oct 2012 Posts: 77 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 77 | Thanks, John. This really is the best online group ever.
G.
"The duty of a patriot is to protect his country from its government." - Thomas Paine
| | | | | Joined: Jul 2008 Posts: 1,262 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 1,262 | Thanks, John. This really is the best online group ever.
G.  | | | | | Joined: Oct 2012 Posts: 77 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 77 | Just checked them out, Sub. Looks great!
"The duty of a patriot is to protect his country from its government." - Thomas Paine
| | | | | Joined: Aug 2010 Posts: 109 Shop Shark | | Shop Shark Joined: Aug 2010 Posts: 109 | Both my 65 LCF60 and C80 have cab lights.
'65 C-10, 65 L-60, 65 C-80, 72 C-60 & and a bunch of old Chevy cars.
Never time to do it right, always time to do it over.
| | | | | Joined: Feb 2010 Posts: 82 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Feb 2010 Posts: 82 | 1964 C30 wrecker with cab lights, not sure of the brand or model but these lights are repros of the 1967-72 lights
might have to copy and paste
http://www.flickr.com/photos/67116733@N03/11435948376/
Last edited by 63burban; 12/18/2013 4:14 PM.
| | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | The only thing I might add to the install diagram is to shrink wrap or tape wrap the first few inches of the lamp wire leading from the base where the wire passes though the cab roof. It would be very easy over time for the wire coat to peel and create a short.
Drew
| | | | | Joined: Jan 2013 Posts: 603 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 603 | My 57 GMC 370 2 1/2 ton, came with the identical lights as shown by Hot Rod John. Don't know if they were factory installed or dealer installed, but you can tell they are the same age as the truck. Still work too!!
57 GMC LCF 370 55 John Deere 40-W 59 John Deere 430-W 2000 GMC 4x4 56 John Deere 420-W Pix on Photobucket | | | | | Joined: Apr 2003 Posts: 942 'Bolter | | 'Bolter Joined: Apr 2003 Posts: 942 | I put Factory type Yankee 77's on my '64 C-30 back in '81. Although I tried to find some, they were no diagrams available back then to put them on in the correct position, that I could find anyway. I went to Junk Yards to measure some Big Bolts, only to find out there were more than one variation. The dealer or owner probably installed some of those. Anyway I went by measurements that I belived to be correct and was satisfied with the results. Today you can find those diagrams online. They have been posted a few times over at '67-'72 Chevy Trucks.
Bill
'60-'72 Chev/GMC Fan
GMC 9500 Fan
Detroit Diesel Fan
| | | | | Joined: Nov 2004 Posts: 1,552 Shop Shark | | Shop Shark Joined: Nov 2004 Posts: 1,552 | The Accessory Installation manual and the tech sheets, found in the NOS Yankee 77 clearance light box, indicate a 3-cluster & 5-cluster configuration & layout dimensions for installation. We have removed a few roof caps, in favor of a roof cap with no cab clearance lights & saved them, for use as a template, when installing cab clearance lights.
| | | | | Joined: Dec 2013 Posts: 2 Moderated | | Moderated Joined: Dec 2013 Posts: 2 | I have a 72 GMC 1/2ton 1500 4x4 pickup with factory clearance lights ( cluster of 5) and factory bucket seats. I have been trying to identify the model of this truck with no luck. Not very computer literate so my wife does most of the looking. The VIN number indicates a possible Heavy half ton or Big 10 due to the cab roof marker lights??? The side emblems are blank so would like to put correct ones on. It has a 350 with turbo 350. Am just starting to spruce her up but would like to know more about model etc? A friend told me that this was only available as a special order and that usually only available on 1 ton cabs. By the way, the roof marker lights are actually on molded in pedestals in the cab roof. Sorry to be so wordy, I'm brand new at this. | | | | | Joined: Apr 2003 Posts: 942 'Bolter | | 'Bolter Joined: Apr 2003 Posts: 942 | Sounds like the Cab Lights you have are "Fireman's Hat" style, which were pretty common in '72. I believe they were optional on any size truck, although the Heavy 2 1/2 to 3 1/2 Ton trucks got the Yankee 77 type. If the Side Lights are just the "Plain" style, they may be correct for your truck. I would check the Door Jamb Tag to see what GVW the truck has.
Welcome to the site, by the way.
Bill
'60-'72 Chev/GMC Fan
GMC 9500 Fan
Detroit Diesel Fan
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