Home » Public Forums » GMCnet » Grote LED clearance light installation (Hardware question)
| Grote LED clearance light installation [message #354588] |
Sun, 10 May 2020 22:31  |
Green machine
Messages: 184
Registered: July 2019
Location: North Vancouver BC
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Hello all. I am replacing clearance lights with the Grote LED replacements and am curious how what hardware you guys used. From the research I've done, it appears most are using blind well nuts with 10-24 screws. Problem is the heads on the #10 screws will not fit in the hole of the new lights. Like not even close. I ground one down and made it work but I'm not really wanting to do this 20 times.
Have they changed design or are people actually using like 6-32 screws and accompanying well nuts? (I'm pretty confident even #8 screw heads wont fit either...)
Maybe allen head screws?
TIA
Shawn Harris
North Vancouver,
Canada
1977 Palm Beach 403
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| Re: Grote LED clearance light installation [message #354589 is a reply to message #354588] |
Mon, 11 May 2020 00:31  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Green machine wrote on Sun, 10 May 2020 22:31Hello all. I am replacing clearance lights with the Grote LED replacements and am curious how what hardware you guys used. From the research I've done, it appears most are using blind well nuts with 10-24 screws. Problem is the heads on the #10 screws will not fit in the hole of the new lights. Like not even close. I ground one down and made it work but I'm not really wanting to do this 20 times.
Have they changed design or are people actually using like 6-32 screws and accompanying well nuts? (I'm pretty confident even #8 screw heads wont fit either...)
Maybe allen head screws?
TIA
That was going to be my suggestion - stainless allen heads or 8-32's. I do not remember what I used.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
[Updated on: Mon, 11 May 2020 00:32] Report message to a moderator |
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| Re: [GMCnet] Grote LED clearance light installation [message #354597 is a reply to message #354589] |
Mon, 11 May 2020 10:18 |
richshoop
Messages: 190
Registered: April 2017
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Filister head screws fit fine. Be sure to use that antiseize on the threads!
> On May 10, 2020 at 10:31 PM Ken Burton via Gmclist wrote:
>
>
> Green machine wrote on Sun, 10 May 2020 22:31
>> Hello all. I am replacing clearance lights with the Grote LED replacements and am curious how what hardware you guys used. From the research I've
>> done, it appears most are using blind well nuts with 10-24 screws. Problem is the heads on the #10 screws will not fit in the hole of the new
>> lights. Like not even close. I ground one down and made it work but I'm not really wanting to do this 20 times.
>>
>> Have they changed design or are people actually using like 6-32 screws and accompanying well nuts? (I'm pretty confident even #8 screw heads wont
>> fit either...)
>>
>> Maybe allen head screws?
>>
>> TIA
>
> That was going to be my suggestion stainless allen heads or 8-32's I do not remember what I used.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
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| Re: Grote LED clearance light installation [message #354604 is a reply to message #354588] |
Mon, 11 May 2020 13:18 |
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Richard RV
Messages: 631
Registered: July 2012
Location: Full-timer for 12 years, ...
Karma: -17
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Shawn,
#10 screws seem unnecessarily large for that application. It's been years since I did it, but I know they weren't #10 nor #6, so they must've been #8. No fit problems.
Richard
'77 Birchaven TZE...777;
'76 Palm Beach under construction;
‘76 Edgemont waiting its turn
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| Re: [GMCnet] Grote LED clearance light installation [message #354614 is a reply to message #354611] |
Mon, 11 May 2020 16:20 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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If you use the Moulded one piece 2 wire led lights from Maxxima, #M20311Y
for yellow, or #M20311R for red, the 8-32 filister head stainless steel
screws will fit the holes perfectly in the lamps. I use a wellnut made of
neoprene with a brass female threaded insert. It is available from McMaster
Carr. The Outside diameter measures 3/8". I wrangle the factory moly
anchors out of the openings, clean up the holes with a 3/8" drill bit, and
permanently adhere them in place with a non hardening flexible sealant like
3M PERMANENT 5300. I cut a strip out of the center of the closed cell foam
gasket included with the lights to allow the wires room to lay flat and not
hold the gasket and lamp proud of the curved roof. When you see it, you
will understand what I mean. I seal the gasket to both the lamp, as well as
the squeaky clean roof, and forget about them. They won't leak or burn out
in my lifetime. Once and done.
Just be sure to test for polarity on the wires BEFORE you glue the
lamps in place. It says PERMANENT on the label for a good reason. Just what
I do. Cost? About $100.00 for ten lamps, and maybe $20.00 for the rest of
the sealant, screws and well nuts.
Jim Hupy
Salem, Or.
On Mon, May 11, 2020, 1:50 PM Shawn Harris via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I went with 8-32 well nuts and allen head screws. I was right though,
> regular #8 screws were a no go...
> --
> Shawn Harris
> North Vancouver,
> Canada
> 1977 Palm Beach 403
>
>
>
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| Re: [GMCnet] Grote LED clearance light installation [message #354653 is a reply to message #354614] |
Tue, 12 May 2020 19:36 |
Ken M
Messages: 32
Registered: December 2019
Location: Redding, CA
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So I just received my marker lights (Grote G5052 and G5053). It’s pouring rain outside right now, so I can’t check this for myself right now, but - do these lights not fit the existing holes of the old lights? Do the holes and “old screws” not line up? As for wiring, do you just clip the wires on the old fixtures then splice the new on with but connectors? As best as I can recall, there wasn’t a lot of extra wiring to play with...
1975 - 26’ Eleganza II
Unsure of what upgrades may have been done. I'm working on sorting that out in the coming months.
Ken Morefield - Redding, CA
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| Re: [GMCnet] Grote LED clearance light installation [message #354654 is a reply to message #354653] |
Tue, 12 May 2020 20:12 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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The numbers that I provided for you are an exact match for the original
equipment lights. If the ones you ordered don't fit, I fail to see their
value in this application. What you DON'T NEED is any more holes in your
roof. You could fabricate an intermediate plate that you could drill and
tap to fit your new lights, then screw those down to the roof, then screw
the lights to the drilled and tapped holes. Or, you could send those lights
back, and buy the correct ones.
Jim Hupy
Salem, Oregon
On Tue, May 12, 2020, 5:36 PM Ken Morefield via Gmclist <
gmclist@list.gmcnet.org> wrote:
> So I just received my marker lights (Grote G5052 and G5053). It’s pouring
> rain outside right now, so I can’t check this for myself right now, but
> - do these lights not fit the existing holes of the old lights? Do the
> holes and “old screws” not line up? As for wiring, do you just clip the
> wires on the old fixtures then splice the new on with but connectors? As
> best as I can recall, there wasn’t a lot of extra wiring to play with...
> --
> 1975 - 26’ Eleganza II
> Unsure of what upgrades may have been done. I'm working on sorting that
> out in the coming months.
> Ken Morefield - Redding, CA
>
> _______________________________________________
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| Re: [GMCnet] Grote LED clearance light installation [message #354655 is a reply to message #354654] |
Tue, 12 May 2020 20:58 |
Dave Stragand
Messages: 307
Registered: October 2017
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The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
-Dave
1978 Transmode near Pittsburgh
>> On Tue, May 12, 2020, 5:36 PM Ken Morefield via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>> So I just received my marker lights (Grote G5052 and G5053). It’s pouring
>> rain outside right now, so I can’t check this for myself right now, but
>> - do these lights not fit the existing holes of the old lights? Do the
>> holes and “old screws” not line up? As for wiring, do you just clip the
>> wires on the old fixtures then splice the new on with but connectors? As
>> best as I can recall, there wasn’t a lot of extra wiring to play with...
>> --
>> 1975 - 26’ Eleganza II
>> Unsure of what upgrades may have been done. I'm working on sorting that
>> out in the coming months.
>> Ken Morefield - Redding, CA
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
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1978 Transmode (403)
Pittsburgh, PA
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| Re: [GMCnet] Grote LED clearance light installation [message #354656 is a reply to message #354655] |
Tue, 12 May 2020 21:31 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Yes that is correct unless the bolts have rusted, or Previous Owner has cut them off flush and poked new leaking holes to mount cheep aftermarket ones with sheet metal screws. Be prepared for the worst and hope for the best.
Dave Stragand wrote on Tue, 12 May 2020 21:58The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
-Dave
1978 Transmode near Pittsburgh
>> On Tue, May 12, 2020, 5:36 PM Ken Morefield via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>> So I just received my marker lights (Grote G5052 and G5053). It’s pouring
>> rain outside right now, so I can’t check this for myself right now, but
>> - do these lights not fit the existing holes of the old lights? Do the
>> holes and “old screws” not line up? As for wiring, do you just clip the
>> wires on the old fixtures then splice the new on with but connectors? As
>> best as I can recall, there wasn’t a lot of extra wiring to play with...
>> --
>> 1975 - 26’ Eleganza II
>> Unsure of what upgrades may have been done. I'm working on sorting that
>> out in the coming months.
>> Ken Morefield - Redding, CA
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
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C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Grote LED clearance light installation [message #354657 is a reply to message #354656] |
Tue, 12 May 2020 21:37 |
C Boyd
Messages: 2629
Registered: April 2006
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Oh and don’t pull on the wires much as they can come unplugged from the harness under the headliner and you might have to drop headliner and the sunvisors are a PITA. Also test wire the lights before crimping or soldering as LEDs are polarity specific. If they don’t work swap wires. One might be black to black and the next one might be black to white.. An easy 2 hour job that will probably take you a week unless you put in over time.
C Boyd wrote on Tue, 12 May 2020 22:31Yes that is correct unless the bolts have rusted, or Previous Owner has cut them off flush and poked new leaking holes to mount cheep aftermarket ones with sheet metal screws. Be prepared for the worst and hope for the best.
Dave Stragand wrote on Tue, 12 May 2020 21:58The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
-Dave
1978 Transmode near Pittsburgh
>> On Tue, May 12, 2020, 5:36 PM Ken Morefield via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>> So I just received my marker lights (Grote G5052 and G5053). It’s pouring
>> rain outside right now, so I can’t check this for myself right now, but
>> - do these lights not fit the existing holes of the old lights? Do the
>> holes and “old screws” not line up? As for wiring, do you just clip the
>> wires on the old fixtures then splice the new on with but connectors? As
>> best as I can recall, there wasn’t a lot of extra wiring to play with...
>> --
>> 1975 - 26’ Eleganza II
>> Unsure of what upgrades may have been done. I'm working on sorting that
>> out in the coming months.
>> Ken Morefield - Redding, CA
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
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C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Grote LED clearance light installation [message #354658 is a reply to message #354657] |
Tue, 12 May 2020 21:39 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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C Boyd wrote on Tue, 12 May 2020 22:37Oh and don’t pull on the wires much as they can come unplugged from the harness under the headliner and you might have to drop headliner and the sunvisors are a PITA. Also test wire the lights before crimping or soldering as LEDs are polarity specific. If they don’t work swap wires. One might be black to black and the next one might be black to white.. An easy 2 hour job that will probably take you a week unless you put in over time.
C Boyd wrote on Tue, 12 May 2020 22:31Yes that is correct unless the bolts have rusted, or Previous Owner has cut them off flush and poked new leaking holes to mount cheep aftermarket ones with sheet metal screws. Be prepared for the worst and hope for the best.
Dave Stragand wrote on Tue, 12 May 2020 21:58The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
-Dave
1978 Transmode near Pittsburgh
>> On Tue, May 12, 2020, 5:36 PM Ken Morefield via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>> So I just received my marker lights (Grote G5052 and G5053). It’s pouring
>> rain outside right now, so I can’t check this for myself right now, but
>> - do these lights not fit the existing holes of the old lights? Do the
>> holes and “old screws” not line up? As for wiring, do you just clip the
>> wires on the old fixtures then splice the new on with but connectors? As
>> best as I can recall, there wasn’t a lot of extra wiring to play with...
>> --
>> 1975 - 26’ Eleganza II
>> Unsure of what upgrades may have been done. I'm working on sorting that
>> out in the coming months.
>> Ken Morefield - Redding, CA
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
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C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Grote LED clearance light installation [message #354660 is a reply to message #354656] |
Tue, 12 May 2020 21:54 |
Dave Stragand
Messages: 307
Registered: October 2017
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Bingo! You must have known my coach’s previous owner. Now I have to fill those 20 incorrect holes with SMC filler, if it ever warms up and stops raining.
> On May 12, 2020, at 10:31 PM, Charles Boyd via Gmclist wrote:
>
> Yes that is correct unless the bolts have rusted, or Previous Owner has cut them off flush and poked new leaking holes to mount cheep aftermarket ones
> with sheet metal screws. Be prepared for the worst and hope for the best.
>
>
> Dave Stragand wrote on Tue, 12 May 2020 21:58
>> The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
>>
>> -Dave
>> 1978 Transmode near Pittsburgh
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1978 Transmode (403)
Pittsburgh, PA
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| Re: [GMCnet] Grote LED clearance light installation [message #354688 is a reply to message #354660] |
Wed, 13 May 2020 21:39 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Well fellers.. y’all talking about these LEDs reminded me I had a new set for our new EL II so when Mark K came By and asked if I needed anything.... well I have 10 new Grote markers. Thanks Mark.. just had 3 lights that were cut off at the well nut and and had 2 new poked holes. The rest used the OEM screws except for 2 rusty ones. Mark used a minimal amount of clear fish tank sillycone to seal. They are BRITE. They are also different looking from the Peterson’s on our Crestmont. The lower row of LEDs in the housing is more forward than the top row and are arranged in an arc but is only noticeable up close. Exact same bus light shape as OEMs and Peterson’s. Peterson’s have all forward facing LEDs close to the front on same plane. The Grote lights had a cut out in the bottom under the gasket big enough to put wires and bucket crimps in and long enough without cutting any stuff for wires and sits flat. Only 2 had the wire color crossed. I’m sure they will be beautiful behind the new sun visor. But that’s tomorrow’s plan.
https://www.grote.com/signal-lighting/clearance-marker-lights/hi-count-school-bus-wedge-led-marker-lights/G5053/
I bought them on sale on the web. Can’t remember where.. about @$7.00. Somebody posted it here bout a year or so ago.
Dave Stragand wrote on Tue, 12 May 2020 22:54Bingo! You must have known my coach’s previous owner. Now I have to fill those 20 incorrect holes with SMC filler, if it ever warms up and stops raining.
> On May 12, 2020, at 10:31 PM, Charles Boyd via Gmclist wrote:
>
> Yes that is correct unless the bolts have rusted, or Previous Owner has cut them off flush and poked new leaking holes to mount cheep aftermarket ones
> with sheet metal screws. Be prepared for the worst and hope for the best.
>
>
> Dave Stragand wrote on Tue, 12 May 2020 21:58
>> The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
>>
>> -Dave
>> 1978 Transmode near Pittsburgh
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C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Grote LED clearance light installation [message #354689 is a reply to message #354688] |
Wed, 13 May 2020 23:08 |
richshoop
Messages: 190
Registered: April 2017
Karma: 0
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Senior Member |
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Just a little mention. Any time you use a welnut or a rivnut. Be sure to use anti seize compound! With all those threads engaged, ANY corrosion will cause you problems....A vocabulary improving moment to be sure!
> On May 13, 2020 at 7:39 PM Charles Boyd via Gmclist wrote:
>
>
> Well fellers.. y’all talking about theseere LEn hioentDs reminded me I had a new set for our new EL II so when Mark K came By and asked if I needed
> anything.... well I have 10 new Grote markers. Thanks Mark.. just had 3 lights that were cut off at the well nut and and had 2 new poked holes. The
> rest used the OEM screws except for 2 rusty ones. Mark used a minimal amount of clear fish tank sillycone to seal. They are BRITE. They are also
> different looking from the Peterson’s on our Crestmont. The lower row of LEDs in the housing is more forward than the top row and are arranged in
> an arc but is only noticeable up close. Exact same bus light shape as OEMs and Peterson’s. Peterson’s have all forward facing LEDs close to the
> front on same plane. The Grote lights had a cut out in the bottom under the gasket big enough to put wires and bucket crimps in and long enough
> without cutting any stuff for wires and sits flat. Only 2 had the wire color crossed. I’m sure they will be beautiful behind the new sun visor.
> But that’s tomorrow’s plan.
>
> https://www.grote.com/signal-lighting/clearance-marker-lights/hi-count-school-bus-wedge-led-marker-lights/G5053/
>
> I bought them on sale on the web. Can’t remember where.. about @$7.00. Somebody posted it here bout a year or so ago.
>
>
>
>
> Dave Stragand wrote on Tue, 12 May 2020 22:54
>> Bingo! You must have known my coach’s previous owner. Now I have to fill those 20 incorrect holes with SMC filler, if it ever warms up and
>> stops raining.
>>
>>> On May 12, 2020, at 10:31 PM, Charles Boyd via Gmclist wrote:
>>>
>>> Yes that is correct unless the bolts have rusted, or Previous Owner has cut them off flush and poked new leaking holes to mount cheep
>>> aftermarket ones
>>> with sheet metal screws. Be prepared for the worst and hope for the best.
>>>
>>>
>>> Dave Stragand wrote on Tue, 12 May 2020 21:58
>>>> The Grotes are an exact fit replacement. You shouldn’t have to drill any holes.
>>>>
>>>> -Dave
>>>> 1978 Transmode near Pittsburgh
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> --
> C. Boyd
> 76 Crestmont
> East Tennessee
>
> _______________________________________________
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