opinoin on headlight relay install - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**bigmac73** · 12-06-2013, 10:37 AM

Guys i was looking at the headlight relay set up,
who has one and are they good? and do you still have to use your original dimmer switch

**leddzepp** · 12-06-2013, 11:33 AM

I have one, totally worth it. Yes you use your original dimmer switch.

**LockDoc** · 12-06-2013, 11:52 AM

-
I upgraded the Green '67. I got the relays from a newer F-250 over at the salvage yard. It has two relays in a nice holder with a cover over it and a bracket to bolt to the inner fender, Worked like a champ! Best part is the owner gave it to me... (I actually picked up three sets) I spliced them into my original wiring with no problems. Be sure and solder & shrink tube all of the wire splices. Also be sure to clean all of the contacts in the light circuit, including the dimmer switch connector. (it is usually the worst). I also added a ground strap from the engine to the frame and from the frame to the core support. Made all the difference in the world... No reason you can't do it this way if you take your time and do it right. For anyone who doesn't have the time, or doesn't want to take the time, buy the kit....

LockDoc

Tx Firefighter · 12-06-2013, 12:06 PM

I do the mod on every one of my trucks. It makes a fantastic improvement. Personally, I've never bought a "kit". It's much cheaper and quicker to just grab relays and sockets and do it myself. There's threads on here detailing the whole mod if you prefer to go the do-it-yourself route.

Tx Firefighter · 12-06-2013, 12:15 PM

I found a thread I started on this mod about 7 years ago. I used a relay pack out of some little Mopar goofy econobox car. Relays are very generic. Bosch make a majority of them anyway.

http://67-72chevytrucks.com/vboard/s...d.php?t=188478

JointTech · 12-06-2013, 01:42 PM

hey firefighter. Whats the metal plate attached to the radiator that you have those mounted on? I dont have that in my truck.

Tx Firefighter · 12-06-2013, 01:46 PM

That's on my 63 truck build. It's a shroud that bolted on next to the six cylinder radiator to close up the opening (smaller radiator than V8 trucks).

TobyArnot · 12-06-2013, 01:52 PM

I'm with you Tx Firefighter, I put mine together for less than $15. I mounted the relays on the right fender lip, near the battery. I left the original wire and sockets in place. I pulled the old plugs off the lights. New 12 ga. wire to H4 bulbs and insulated male plugs into the old OEM plug for dimmer connections.

Quick, easy, and next to disk brakes, the best thing I've done for my DD.

**LockDoc** · 12-06-2013, 02:06 PM

-
Here are the wiring diagrams. First is for Chevy and second is for GMC. I think VetteVet did them but I am not sure...

LockDoc

12-06-2013, 10:37 AM	#1
bigmac73 Senior Member Join Date: Mar 2012 Location: Chesapeake, Va Posts: 1,275	opinoin on headlight relay install Guys i was looking at the headlight relay set up, who has one and are they good? and do you still have to use your original dimmer switch __________________ Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks

12-06-2013, 11:33 AM	#2
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,031	Re: opinoin on headlight relay install I have one, totally worth it. Yes you use your original dimmer switch. __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

12-06-2013, 11:52 AM	#3
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,771	Re: opinoin on headlight relay install - I upgraded the Green '67. I got the relays from a newer F-250 over at the salvage yard. It has two relays in a nice holder with a cover over it and a bracket to bolt to the inner fender, Worked like a champ! Best part is the owner gave it to me... (I actually picked up three sets) I spliced them into my original wiring with no problems. Be sure and solder & shrink tube all of the wire splices. Also be sure to clean all of the contacts in the light circuit, including the dimmer switch connector. (it is usually the worst). I also added a ground strap from the engine to the frame and from the frame to the core support. Made all the difference in the world... No reason you can't do it this way if you take your time and do it right. For anyone who doesn't have the time, or doesn't want to take the time, buy the kit.... LockDoc __________________ 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; 12-06-2013 at 12:00 PM.

12-06-2013, 12:06 PM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: opinoin on headlight relay install I do the mod on every one of my trucks. It makes a fantastic improvement. Personally, I've never bought a "kit". It's much cheaper and quicker to just grab relays and sockets and do it myself. There's threads on here detailing the whole mod if you prefer to go the do-it-yourself route. __________________ I'm on the Instagram- @Gearhead_Kevin

12-06-2013, 12:15 PM	#5
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: opinoin on headlight relay install I found a thread I started on this mod about 7 years ago. I used a relay pack out of some little Mopar goofy econobox car. Relays are very generic. Bosch make a majority of them anyway. http://67-72chevytrucks.com/vboard/s...d.php?t=188478 __________________ I'm on the Instagram- @Gearhead_Kevin

12-06-2013, 01:42 PM	#6
JointTech Registered User Join Date: Feb 2012 Location: Mission Viejo, CA Posts: 1,856	Re: opinoin on headlight relay install hey firefighter. Whats the metal plate attached to the radiator that you have those mounted on? I dont have that in my truck. __________________ 72 C20 Long Bed SB350 TH400 14 bolt rear end Extremely boring build thread

12-06-2013, 01:46 PM	#7
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: opinoin on headlight relay install That's on my 63 truck build. It's a shroud that bolted on next to the six cylinder radiator to close up the opening (smaller radiator than V8 trucks). __________________ I'm on the Instagram- @Gearhead_Kevin

12-06-2013, 01:52 PM	#8
TobyArnot Quit if it's not FUN!!! Join Date: Jul 2010 Location: Indian Trail, N.C, Posts: 864	Re: opinoin on headlight relay install I'm with you Tx Firefighter, I put mine together for less than $15. I mounted the relays on the right fender lip, near the battery. I left the original wire and sockets in place. I pulled the old plugs off the lights. New 12 ga. wire to H4 bulbs and insulated male plugs into the old OEM plug for dimmer connections. Quick, easy, and next to disk brakes, the best thing I've done for my DD. __________________ MY MOTTO: Eat it all up, Wear it out, Use the last few drops, Spend all you've got, Late in life, you'll think of the things you didn't do, not the things you did. - Get out and experience life ! . Robbie Robinson a.k.a. TobyArnot (Toe Bee or not toe bee)

12-06-2013, 02:06 PM	#9
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,771	Re: opinoin on headlight relay install - Here are the wiring diagrams. First is for Chevy and second is for GMC. I think VetteVet did them but I am not sure... LockDoc Attached Images __________________ 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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