Home » Public Forums » GMCnet » Top Marker Lights
| Top Marker Lights [message #209889] |
Tue, 04 June 2013 23:21  |
RadioActiveGMC
Messages: 1020
Registered: November 2010
Location: Hot AZ desert
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What is the legal requirement for the roof top marker lights?
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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| Re: Top Marker Lights [message #209898 is a reply to message #209889] |
Wed, 05 June 2013 00:43  |
Craig Lechowicz
Messages: 541
Registered: October 2006
Location: Waterford, MI
Karma: 0
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I may not remember this right, but I believe there is a Federal Motor Vehicle Safety Standard (FMVSS) that calls for wider vehicles (I'm thinking it's over 80", but I'm not sure anymore what is included in the width measurement) to have the marker lights. At GM it worked out that 1/2 ton pickup/utilities didn't require them, but 3/4 and 1 tons did.
There are often individual state and even local laws that are written around stuff like this as well, although if you don't mind spending a lot of money on lawyers, often you can prevail on the FMVSS standard pre-empting local requirements.
Craig Lechowicz
'77 Kingsley, Waterford, MI
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| Re: [GMCnet] Top Marker Lights [message #209927 is a reply to message #209919] |
Wed, 05 June 2013 08:52 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Matt, reading the DOT standard for B class it looks like clearance lights
(outside) are still required, "One on each side of the vertical centerline
to indicate overall width - Both on the same level as high as practicable"
Wording is slightly different for the identification lamps (center): "As
close as practicable to the top of the vehicle,..."
Looking at the 2013 GMC 1 ton pickup, it still has the outside clearance
lights as well as the center identification lamps.
On Wed, Jun 5, 2013 at 9:12 AM, Matt Colie <matt7323tze@gmail.com> wrote:
>
>
> RadioActiveGMC wrote on Wed, 05 June 2013 00:21
> > What is the legal requirement for the roof top marker lights?
>
> You have some of the answers.
>
> There are actually two different sets of lights on the top of the coach.
>
> The three in the middle are the DOT required "Over 80 Wide". That is why
> there are the three lights on all the dually pickups.
>
> The two pair out at the corners are called clearance lights. While these
> were required when the coach was built, but sometime in the mid-80s, the
> top corner light requirement was dropped in favor of lights at the maximum
> width only and the tail and front markers would meet that.
>
> What I never figured out while I was doing truck stuff, is why the set of
> lights were regularly referred to as ICC lights when ICC had nothing to do
> with the lights.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumière (say show-me-air)
> Now with 4 working Rear Brakes
> SE Michigan - Twixt A2 and Detroit
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: Top Marker Lights [message #209942 is a reply to message #209889] |
Wed, 05 June 2013 10:17 |
Charley
Messages: 116
Registered: September 2010
Location: Magnolia Texas
Karma: 0
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Requirements may be a mute point for me as only one works at this point. Oh well another project at a later date.
Charley Harris
Magnolia Texas
1976 Edgemont
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| Re: [GMCnet] Top Marker Lights [message #209986 is a reply to message #209898] |
Wed, 05 June 2013 15:39 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Even 1-ton don't have those lights unless they are "dually" versions.
Some folks order them for the SRW (Single Rear Wheel) 1/2, 3/4
AND 1 ton pickups if they are going to tow trailers that are wider
than the 80" width.
Mac in OKC
Money Pit
Sent from my iPad
On Jun 5, 2013, at 0:43, "Craig Lechowicz" <craig.lechowicz@sbcglobal.net> wrote:
>
>
> I may not remember this right, but I believe there is a Federal Motor Vehicle Safety Standard (FMVSS) that calls for wider vehicles (I'm thinking it's over 80", but I'm not sure anymore what is included in the width measurement) to have the marker lights. At GM it worked out that 1/2 ton pickup/utilities didn't require them, but 3/4 and 1 tons did.
>
> There are often individual state and even local laws that are written around stuff like this as well, although if you don't mind spending a lot of money on lawyers, often you can prevail on the FMVSS standard pre-empting local requirements.
> --
> Craig Lechowicz
> '77 Kingsley, Waterford, MI
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Top Marker Lights [message #209990 is a reply to message #209986] |
Wed, 05 June 2013 16:17 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Senior Member |
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Without duals, the 1 ton's are all 80 inches wide exactly. Has to be over
80 (without mirrors) to make the cut and move it to class B.
On Wed, Jun 5, 2013 at 4:39 PM, D C _Mac_ Macdonald <k2gkk@hotmail.com>wrote:
> Even 1-ton don't have those lights unless they are "dually" versions.
> Some folks order them for the SRW (Single Rear Wheel) 1/2, 3/4
> AND 1 ton pickups if they are going to tow trailers that are wider
> than the 80" width.
>
> Mac in OKC
> Money Pit
>
>
> Sent from my iPad
>
> On Jun 5, 2013, at 0:43, "Craig Lechowicz" <craig.lechowicz@sbcglobal.net>
> wrote:
>
> >
> >
> > I may not remember this right, but I believe there is a Federal Motor
> Vehicle Safety Standard (FMVSS) that calls for wider vehicles (I'm thinking
> it's over 80", but I'm not sure anymore what is included in the width
> measurement) to have the marker lights. At GM it worked out that 1/2 ton
> pickup/utilities didn't require them, but 3/4 and 1 tons did.
> >
> > There are often individual state and even local laws that are written
> around stuff like this as well, although if you don't mind spending a lot
> of money on lawyers, often you can prevail on the FMVSS standard
> pre-empting local requirements.
> > --
> > Craig Lechowicz
> > '77 Kingsley, Waterford, MI
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
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Unsubscribe or Change List Options:
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Top Marker Lights [message #209995 is a reply to message #209990] |
Wed, 05 June 2013 17:13 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Senior Member |
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And Billy Bob adds them because all the big rigs have them and he wants to be cool.
Tom, MS II
Living deep in red neck country
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Top Marker Lights [message #209996 is a reply to message #209944] |
Wed, 05 June 2013 17:21 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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| Kelvin Dietz wrote on Wed, 05 June 2013 10:20 |
On 6/4/2013 9:21 PM, Michael wrote:
>
> What is the legal requirement for the roof top marker lights?
Does it matter?
I've always been a bit a scofflaw. Break the rules you can so you're
not so tempted to break the rules you shouldn't...
http://farm8.staticflickr.com/7300/8870188854_1f605e226c_o.jpg
Kelvin
'73 23'
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Love the look. What did you use for side molding and side lights?
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] Top Marker Lights [message #210003 is a reply to message #209927] |
Wed, 05 June 2013 18:40 |
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hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma: 0
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Senior Member |
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Same for my brothers Hummer.
Howard
Alpine Ca
All is well with my Lord
The best argument against democracy is a five minute conversation with the
average voter
(Winston Churchill)
----- Original Message -----
From: "Mike Teets" <teamteets@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Wednesday, June 05, 2013 06:52
Subject: Re: [GMCnet] Top Marker Lights
Matt, reading the DOT standard for B class it looks like clearance lights
(outside) are still required, "One on each side of the vertical centerline
to indicate overall width - Both on the same level as high as practicable"
Wording is slightly different for the identification lamps (center): "As
close as practicable to the top of the vehicle,..."
Looking at the 2013 GMC 1 ton pickup, it still has the outside clearance
lights as well as the center identification lamps.
On Wed, Jun 5, 2013 at 9:12 AM, Matt Colie <matt7323tze@gmail.com> wrote:
>
>
> RadioActiveGMC wrote on Wed, 05 June 2013 00:21
> > What is the legal requirement for the roof top marker lights?
>
> You have some of the answers.
>
> There are actually two different sets of lights on the top of the coach.
>
> The three in the middle are the DOT required "Over 80 Wide". That is why
> there are the three lights on all the dually pickups.
>
> The two pair out at the corners are called clearance lights. While these
> were required when the coach was built, but sometime in the mid-80s, the
> top corner light requirement was dropped in favor of lights at the maximum
> width only and the tail and front markers would meet that.
>
> What I never figured out while I was doing truck stuff, is why the set of
> lights were regularly referred to as ICC lights when ICC had nothing to do
> with the lights.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumière (say show-me-air)
> Now with 4 working Rear Brakes
> SE Michigan - Twixt A2 and Detroit
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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Unsubscribe or Change List Options:
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All is well with my Lord
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| Re: [GMCnet] Top Marker Lights [message #210017 is a reply to message #210005] |
Wed, 05 June 2013 21:05 |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Senior Member |
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That is exactly why I like my LED cab lights. Every time I pull into a
campsite at night I have all of my lights working. Usually not a single
other coach has this. I just have to come and go in the dark and it looks
like I have a perfect coach.
On Wed, Jun 5, 2013 at 7:48 PM, Howard and Sue <hnielsen2@cox.net> wrote:
> Matt;
> They have to blame someone.
> Blame it on the ICC
> We owned a SOB that I could never get the all the lights to work at once.
> Never stopped once
> Howard
> Alpine CA
>
> All is well with my Lord
> The best argument against democracy is a five minute conversation with the
> average voter
> (Winston Churchill)
>
> ----- Original Message -----
> From: "Matt Colie" <matt7323tze@gmail.com>
> To: <gmclist@temp.gmcnet.org>
> Sent: Wednesday, June 05, 2013 06:12
> Subject: Re: [GMCnet] Top Marker Lights
>
>
>
>
> RadioActiveGMC wrote on Wed, 05 June 2013 00:21
> > What is the legal requirement for the roof top marker lights?
>
> You have some of the answers.
>
> There are actually two different sets of lights on the top of the coach.
>
> The three in the middle are the DOT required "Over 80 Wide". That is why
> there are the three lights on all the dually pickups.
>
> The two pair out at the corners are called clearance lights. While these
> were required when the coach was built, but sometime in the mid-80s, the
> top
> corner light requirement was dropped in favor of lights at the maximum
> width
> only and the tail and front markers would meet that.
>
> What I never figured out while I was doing truck stuff, is why the set of
> lights were regularly referred to as ICC lights when ICC had nothing to do
> with the lights.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumière (say show-me-air)
> Now with 4 working Rear Brakes
> SE Michigan - Twixt A2 and Detroit
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Top Marker Lights [message #210057 is a reply to message #209944] |
Thu, 06 June 2013 07:57 |
 |
Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Kelvin Dietz wrote on Wed, 05 June 2013 11:20 |
On 6/4/2013 9:21 PM, Michael wrote:
>
> What is the legal requirement for the roof top marker lights?
Does it matter?
I've always been a bit a scofflaw. Break the rules you can so you're not so tempted to break the rules you shouldn't...
http://farm8.staticflickr.com/7300/8870188854_1f605e226c_o.jpg
Not that I'm suggesting this lawlessness for others, mind you. Nooooo....
I got tired of washing around them. Was only a matter of time before I broke one with the wash brush - not to mention the leak possibilities
I made aluminum covers for them. Slathered with a little poly sealant and help in place with SS screws. If the Man ever decides I AM breaking the law I can always re-install them.
Kelvin
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Kelvin,
I, too, like the look.
If you get bothered by a LEO, you have lights that qualify as clearance. The side markers are at the maximum width and with the tumblehome of a GMC the roof clearance are moot. (They were required long ago but no more.) If someone gets pushy about the over 80 set, put them in the grill and on the rear bumper. They only need to be there.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Top Marker Lights [message #210100 is a reply to message #209889] |
Thu, 06 June 2013 15:07 |
Luvn737s
Messages: 1106
Registered: June 2007
Karma: 2
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Senior Member |
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Mine are inop on the outside corners, but I don't want to pull the headliner down and watch it crumble around me. Do you think a steel wire (hooked to a power wire) could be fished along with a strong magnet from the outside so that I could tap power from a working light? The end caps are plastic up there aren't they?
Randy
1973 26' Painted Desert
Ahwatukee (Phoenix) AZ
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| Re: [GMCnet] Top Marker Lights [message #210102 is a reply to message #210100] |
Thu, 06 June 2013 15:19 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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The front clearance lights are all fed from the harness that is accessible
from the speaker/light grill by the drivers head as well as the passengers
head. Each clearance lamp has a 2 pin connector under it. If you lose that
2 pin connector when changing lamps, and you do not possess the skills of a
cardiac catheter surgeon, the headliner is coming out to retrieve the
wires. I usually pull them up, and secure them with a long piece of scrap
wire that I tape to the top of the coach while I am replacing the clearance
light. Don't ask how I learned that trick. But while I had the headliner
out, I mounted a sattelite radio antenna on the top of the roof and ran the
antenna wire down the middle of the windshield while I was in there.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Thu, Jun 6, 2013 at 1:07 PM, Randy <Acrosport2@hotmail.com> wrote:
>
>
> Mine are inop on the outside corners, but I don't want to pull the
> headliner down and watch it crumble around me. Do you think a steel wire
> (hooked to a power wire) could be fished along with a strong magnet from
> the outside so that I could tap power from a working light? The end caps
> are plastic up there aren't they?
> --
> Randy
> 1973 26' Painted Desert
> Ahwatukee (Phoenix) AZ
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
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