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#1 |
Between Trucks...
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
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Anybody using the LMC Heavy Duty Headlight Harness? I wanted relays for my headlights but didn't want to hack up the stock wiring. Supposedly it's plug and play...
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#2 |
Registered User
Join Date: Oct 2005
Location: ILL.
Posts: 129
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Re: LMC Heavy Duty Headlight Harness
Works good in my truck so far but I just drove it last night 20 miles easy to install
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1970 4X4 LONG BED 350 TPI 700R4 |
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#3 |
Between Trucks...
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
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Re: LMC Heavy Duty Headlight Harness
Cool, thanks webbes. Just ordered one as an X-mas gift to myself...
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#4 |
Registered User
Join Date: Oct 2007
Location: San Antonio TX
Posts: 124
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Re: LMC Heavy Duty Headlight Harness
Do they put out that much more light? I'm assuming you bought the Halogen Headlight. If they work good I will order some.
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#5 |
Between Trucks...
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
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Re: LMC Heavy Duty Headlight Harness
I just ordered the harness with the relays, didn't get the halogens. I'm more concerned about the voltage going through the light switch and under dash harness.
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#6 |
Registered User
Join Date: Oct 2005
Location: ILL.
Posts: 129
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Re: LMC Heavy Duty Headlight Harness
Just order the harness for now. Still trying to get all the bugs out of my truck. Install a tpi motor in it. Working out good so far
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1970 4X4 LONG BED 350 TPI 700R4 |
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#7 |
Senior Member
Join Date: Aug 2005
Location: OKC, OK
Posts: 2,365
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Re: LMC Heavy Duty Headlight Harness
Harness is junk IMO, I bought a couple and they are cheaply made. Instructions are not even in English! AAW's relay kit is twice the price, but I feel it is twice the product, USA made and instructions in English.
Mike
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Mike Redpath |
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#8 |
Rottenwood Garage Member
Join Date: May 2005
Location: Marietta, Georgia
Posts: 4,321
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Re: LMC Heavy Duty Headlight Harness
Member "old yella" or "old yellow" has one
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2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! It's not just a hobby..It's a LIFESTYLE!!! Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! |
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#9 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,511
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Re: LMC Heavy Duty Headlight Harness
Quote:
LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#10 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: LMC Heavy Duty Headlight Harness
Head light relays:
This has been a hot topic now for awhile. It seems to me to be a rather simple solution. Buy two relays at NAPA or any other part store. Mount them close to the driver's side head light. Clip the two head light wires (low) & (high) about 6" away from the light. One end from the dash goes to the incoming switch terminal. The other end connects to the outgoing. Run a hot wire from battery and jump it off both relays. Connect a ground to both relays and your done. Typical wiring for a relay. I may even do this this weekend myself. ![]()
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#11 |
PROJECT 7DEUCE
![]() Join Date: Dec 2002
Location: GRANTS PASS OR
Posts: 21,608
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Re: LMC Heavy Duty Headlight Harness
I would not buy anything from L.M.C.
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GO BIG GREEN ![]() MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P.. |
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#12 |
Senior Member
![]() Join Date: Mar 2006
Location: Clarkrange Tennessee
Posts: 1,786
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Re: LMC Heavy Duty Headlight Harness
I have been looking at these guys wiring harness.
http://www.americanautowire.com/FactoryFit.html Rick |
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#13 |
Firefighter
Join Date: Feb 2001
Location: Yellville, Ar, USA
Posts: 1,943
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I don't understand, what the big deal is about upgrading the light system with relays when your running Halogen headlamps? I have been running Halogen headlights for 7 years now on my 72 Chevy and have never had 1 single problem with the headlight switch, wiring harness or dimmer switch.
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'72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA ![]() ![]() |
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#14 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,643
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Re: LMC Heavy Duty Headlight Harness
I have also run halogens for many years without a harness or relay, and no problems. However, I'm sure the voltage at the lamps -- and therefore the light output -- is less than optimal. I just haven't gotten around to verifying it with a meter...
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#15 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: LMC Heavy Duty Headlight Harness
black and blue, Even with old T3 bulbs, the relays set up is a good idea. You increase the power to the bulb, which increases the light output. This is a noticeable difference. Ever notice at night you can tell who has an old car on the freeway from a few miles away... the yellowish orange light conpaired to the white light?
The amount of amps going thought the switches is an issue too, but it's an issue over time. Even with old school non hallogon bulbs, the amps going through the switches burns them up over time. I have done the conversion, and see no reason personally to buy a kit. Too many people are afraid to modify there harness. A good repair/upgrade is just as good as unmodified. It's when you have 7 connections in a single wire wrapped with duct tape and wire nuts... that's when there's a problem. |
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#16 |
Registered User
Join Date: Oct 2005
Location: ILL.
Posts: 129
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Re: LMC Heavy Duty Headlight Harness
Lockdoc I do not but if you have any question just ask. I might be able to help
Bill
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1970 4X4 LONG BED 350 TPI 700R4 |
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#17 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,511
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Re: LMC Heavy Duty Headlight Harness
Quote:
Sorry about the hijack... As a note on the OP's question, there's no doubt in my mind that the relay setup would take a lot of stress off of the light system, especially once the various connections start getting a little (or a lot) of corrosion on them. I know on a couple of older trucks I have had, after the lights have been on for a while the light switch under the dash got really hot. The relay mod should cure that. I plan on adding it to the white truck this spring. LockDoc LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 12-24-2007 at 09:03 AM. |
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#18 | |
Just hang'n around
Join Date: Nov 2005
Location: Camano Island WA
Posts: 248
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Re: LMC Heavy Duty Headlight Harness
Quote:
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Driving a '68 Chevy C20 and a '93 Astro Van. Lots and lots of mileage that I deduct each year. |
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#19 |
Firefighter
Join Date: Feb 2001
Location: Yellville, Ar, USA
Posts: 1,943
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Re: LMC Heavy Duty Headlight Harness
Steelaworki'n, nope I don't have that problem as a matter of fact I get the newer cars flashing their lights at me when I have them on dim already (Yes they are adjusted properly) LOL. My headlights on my 72 are even brighter than my wife's 94 Ford Escort and her 93 Toyota Camry, I have absoultely no problem seeing at night with them they give off a very bright white light. Now compared to my 70 with the old T3 headlights (which looks like I am using two very dim flashlights) it is definitely a drastic change.
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'72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA ![]() ![]() |
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#20 |
Senior Member
![]() Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,873
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Re: LMC Heavy Duty Headlight Harness
Real trucks have 4 headlights and don't need all this crap.
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'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. |
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#21 | |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: LMC Heavy Duty Headlight Harness
WorkinLonghorn,
Quote:
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__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#22 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: LMC Heavy Duty Headlight Harness
try the real trucks, with 4 headlights, and relays.
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#23 | |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: LMC Heavy Duty Headlight Harness
Longhorn Man,
Quote:
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__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#24 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,643
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Re: LMC Heavy Duty Headlight Harness
I've had 'em both ways and while four lamps outperform two on high beam (especially with position-specific E-codes!), the larger reflector & lens on 7" lamps will throw more light on low beam than a comparable 5 3/4" lamp.
Now, a 7" H-4 high/low with separate high beam lamps would be the best of both worlds... ![]()
__________________
- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#25 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: LMC Heavy Duty Headlight Harness
LOL!!!
I prefer them slightly blinded... I can tell them I am real good looking and they won't question it. I tell them, "Picture brad pitt, but slightly better lookin and with a shaved head" I have to blind them over and over sometimes. ![]() |
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