Quick question for Headlight relay upgrade users - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Steve Cole · 03-25-2016, 10:35 AM

Question For those who have done the headlight relay upgrade, (I bought my kit from LMC, p/n 36-3580), did your kit have a fusible link? If so, does it go from the positive battery cable to the junction block on the passenger fender?
Thanks in advance.

dazza · 03-25-2016, 10:37 AM

I have the upgrade but didn't use a kit and I do have a fusible link from junction block on pass fender to battery positive.

Lanman1972 · 03-25-2016, 10:40 AM

I connected mine directly to the Pos terminal using an extender similar to this. Got mine at NAPA.

Andy4639 · 03-25-2016, 10:43 AM

I used a 40 amp fuse and tied straight off the battery terminal. Just because it was shorter wiring.

davepl · 03-25-2016, 01:26 PM

Is this for a GMC? Is it yellow? If so, they've been wired wrong for the last couple of years. Don't know about the Chevrolet two-lamp, but the four-lamp had high beam and low beam reversed in the harness. It's a mess to deal with if you're not aware.

Andy4639 · 03-25-2016, 03:24 PM

I made my kit. But any good kit pulling 30amps should have a fuse link in the wiring off the battery as close to the battery as possible. Going to the fender bulk head to me is not right. If you go to the fender to pull power then you just need to put the fuse in line from there not the battery.

88Ironduke · 03-25-2016, 03:44 PM

I made my harness using two 30 amp circuit breakers at the battery for each relay. Add some H4 bulb assemblies and what a difference!

Paul

03-25-2016, 10:35 AM	#1
Steve Cole Registered User Join Date: May 2012 Location: Faith,NC Posts: 1,626	Quick question for Headlight relay upgrade users Question For those who have done the headlight relay upgrade, (I bought my kit from LMC, p/n 36-3580), did your kit have a fusible link? If so, does it go from the positive battery cable to the junction block on the passenger fender? Thanks in advance.

03-25-2016, 10:37 AM	#2
dazza Registered User Join Date: Aug 2002 Location: California Posts: 971	Re: Quick question for Headlight relay upgrade users I have the upgrade but didn't use a kit and I do have a fusible link from junction block on pass fender to battery positive. __________________ --------------------------------------------------------- I'm not crazy, I'm chosen, there's a difference. ---------------------------- '72 K10 SWB, 350, sm465/np205 ---- ----

03-25-2016, 10:40 AM	#3
Lanman1972 Registered User Join Date: Dec 2013 Location: Omaha NE Posts: 620	Re: Quick question for Headlight relay upgrade users I connected mine directly to the Pos terminal using an extender similar to this. Got mine at NAPA. Attached Images

03-25-2016, 10:43 AM	#4
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Quick question for Headlight relay upgrade users I used a 40 amp fuse and tied straight off the battery terminal. Just because it was shorter wiring. __________________ 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.

03-25-2016, 01:26 PM	#5
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,334	Re: Quick question for Headlight relay upgrade users Is this for a GMC? Is it yellow? If so, they've been wired wrong for the last couple of years. Don't know about the Chevrolet two-lamp, but the four-lamp had high beam and low beam reversed in the harness. It's a mess to deal with if you're not aware. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

03-25-2016, 03:24 PM	#6
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Quick question for Headlight relay upgrade users I made my kit. But any good kit pulling 30amps should have a fuse link in the wiring off the battery as close to the battery as possible. Going to the fender bulk head to me is not right. If you go to the fender to pull power then you just need to put the fuse in line from there not the battery. __________________ 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.

03-25-2016, 03:44 PM	#7
88Ironduke Registered User Join Date: Jul 2010 Location: Willingboro, NJ Posts: 489	Re: Quick question for Headlight relay upgrade users I made my harness using two 30 amp circuit breakers at the battery for each relay. Add some H4 bulb assemblies and what a difference! Paul __________________ Retired USAF - No rockets, no mortars, no bad guys shooting...No stress!!! My Build Thread: Project 72' Green http://67-72chevytrucks.com/vboard/s...d.php?t=587932



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