The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-16-2011, 04:22 AM   #1
stroked84
Registered User
 
Join Date: Jan 2011
Location: Bay City, Texas
Posts: 6
Question Headlight help

I would like to put relays on my headlights. Can someone tell me where in the lines to put them and how to wire the terminals please...thanks
stroked84 is offline   Reply With Quote
Old 02-16-2011, 11:12 AM   #2
bmchevy1979
Registered User
 
bmchevy1979's Avatar
 
Join Date: Dec 2010
Location: Visalia, Ca
Posts: 707
Re: Headlight help

here is a diagram I have
Attached Images
 
__________________
<Brandon>
1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works.
1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15
81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in
1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096
1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195
bmchevy1979 is offline   Reply With Quote
Old 02-16-2011, 11:29 AM   #3
N2TRUX
Happy to be here
 
N2TRUX's Avatar
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
Re: Headlight help

Heres another one...
Attached Images
 
__________________
Follow me on Facebook and Instagram @N2trux.com

Articles-

"Jake" the 84 to 74 crewcab

"Elwood" the77_Remix

85 GMC Sierra "Scarlett"

"Refining Sierra"

Last edited by N2TRUX; 02-16-2011 at 11:30 AM.
N2TRUX is offline   Reply With Quote
Old 02-16-2011, 11:38 AM   #4
yellowGT
Registered User
 
yellowGT's Avatar
 
Join Date: Jan 2006
Location: Garland, TX
Posts: 970
Re: Headlight help

whats the purpose for running relays?
__________________

'84 swb chevy
'69 swb chevy
'68 swb chevy
'95 Impala ss-sold
'89 chevy crew cab dually 3+3
yellowGT is offline   Reply With Quote
Old 02-16-2011, 12:44 PM   #5
stroked84
Registered User
 
Join Date: Jan 2011
Location: Bay City, Texas
Posts: 6
Re: Headlight help

When I bought the truck the po had installed these crystal white headlights, and i have already been through 2 diff headlight switches they keep melting. They last about 5 or 6 weeks then melt down.
stroked84 is offline   Reply With Quote
Old 02-16-2011, 01:16 PM   #6
triophan
Registered User
 
Join Date: Dec 2010
Location: Little Rock, AR
Posts: 61
Re: Headlight help

stock output halogens the ($20 pair from AZone or Advance) are bright as day on low since I did the relays.
Now I'm wondering if I can put relays on the tails to make them stand out more (since I have '39 ford tails on the stepper)
triophan is offline   Reply With Quote
Old 02-16-2011, 01:20 PM   #7
N2TRUX
Happy to be here
 
N2TRUX's Avatar
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
Re: Headlight help

Quote:
Originally Posted by yellowGT View Post
whats the purpose for running relays?
It allows a solid 12v to your headlights greatly increasing their lighting ability. This and the painted cluster mod are the best thing you can do to these trucks to improve safety.
__________________
Follow me on Facebook and Instagram @N2trux.com

Articles-

"Jake" the 84 to 74 crewcab

"Elwood" the77_Remix

85 GMC Sierra "Scarlett"

"Refining Sierra"
N2TRUX is offline   Reply With Quote
Old 02-16-2011, 01:43 PM   #8
DriverDown
Junior Member
 
DriverDown's Avatar
 
Join Date: Jul 2002
Location: Austin, TX
Posts: 69
Re: Headlight help

Is there a preferred place to get this kit - in other words, is any particular kit better than any other?
DriverDown is offline   Reply With Quote
Old 02-16-2011, 01:58 PM   #9
yellowGT
Registered User
 
yellowGT's Avatar
 
Join Date: Jan 2006
Location: Garland, TX
Posts: 970
Re: Headlight help

Quote:
Originally Posted by N2TRUX View Post
It allows a solid 12v to your headlights greatly increasing their lighting ability. This and the painted cluster mod are the best thing you can do to these trucks to improve safety.

painted cluster? is that so the cluster gets brighter as well?
__________________

'84 swb chevy
'69 swb chevy
'68 swb chevy
'95 Impala ss-sold
'89 chevy crew cab dually 3+3
yellowGT is offline   Reply With Quote
Old 02-16-2011, 04:03 PM   #10
BLE 'BURBAN
In the Forgotten far North.
 
BLE 'BURBAN's Avatar
 
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
Re: Headlight help

Quote:
Originally Posted by yellowGT View Post
painted cluster? is that so the cluster gets brighter as well?
Yep. Disassemble the cluster and paint both the blueish white housing the gauges set in as well as the back side of the front cover(located between the clear lens and the gauges) GLOSS WHITE to get the most benificial use of the light output of your #168 bulbs.
In the past I've tried a variety of things to get my gauges to light up brighter.
1. CHanged all bulbs to 194's (Found out later 194's are a bit lower wattage/candlepower than the 168's)
2. Tried going with 921 bulbs much much brighter/hotter bulbs = Had to insert bulbs into sockets from the front as bulbs were too large to fit thru openings in back of cluster. Also bulbs started to melt cluster housing.
3. Tried "CHROME SILVER" paint = actually got darker/harder to see gauges.
4. tried FLAT WHITE & SEMI GLOSS WHITE paint = A bit better improvment than the factory.
5. L.E.D. BULBS = Not enough sideways light output for my likeing. worse than having 1 or 2 bulbs burnt out.
__________________
1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015
1990 chevy suburban V2500 5.7L
My cluster Mods-Nov 2007
overhead console Stereo install Round 2 Aug 2009
Heated/turn signal mirror upgrade

Last edited by BLE 'BURBAN; 02-16-2011 at 04:03 PM.
BLE 'BURBAN is offline   Reply With Quote
Old 02-16-2011, 04:48 PM   #11
N2TRUX
Happy to be here
 
N2TRUX's Avatar
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
Quote:
Originally Posted by DriverDown View Post
Is there a preferred place to get this kit - in other words, is any particular kit better than any other?
There are several companies that sell a kit, but you can piece one together too. The Bosch style relays and pigtails can be had for less than 10.00 a set. The rest is simple wires and a few connectors.
Posted via Mobile Device
N2TRUX is offline   Reply With Quote
Old 02-16-2011, 06:04 PM   #12
DriverDown
Junior Member
 
DriverDown's Avatar
 
Join Date: Jul 2002
Location: Austin, TX
Posts: 69
Re: Headlight help

Quote:
Originally Posted by N2TRUX View Post
There are several companies that sell a kit, but you can piece one together too. The Bosch style relays and pigtails can be had for less than 10.00 a set. The rest is simple wires and a few connectors.
Posted via Mobile Device
Thanks - I'm absolutely going to try to get this and the painted cluster mod completed, although I think I'll start on a junkyard housing before inevitably ruining the one in the truck. Also, I don't have any electrical experience, so the kit may be worth it assuming there are instructions included.

I'm driving this truck several times a week, so this really should have been the first thing I did...
DriverDown is offline   Reply With Quote
Old 02-16-2011, 06:12 PM   #13
jasonroman
Registered User
 
jasonroman's Avatar
 
Join Date: Jul 2008
Location: sayreville nj
Posts: 1,072
Re: Headlight help

gonna follow this one. gotta try the cluster thing soon. and had no idea about relay. no electrical experience here. hopefully someone will post a step by step
jasonroman is offline   Reply With Quote
Old 02-17-2011, 10:56 AM   #14
bmchevy1979
Registered User
 
bmchevy1979's Avatar
 
Join Date: Dec 2010
Location: Visalia, Ca
Posts: 707
Re: Headlight help

here is a link with some info about installing them http://67-72chevytrucks.com/vboard/s...d.php?t=182351
__________________
<Brandon>
1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works.
1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15
81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in
1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096
1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195
bmchevy1979 is offline   Reply With Quote
Old 02-17-2011, 11:58 AM   #15
Pop's C-10
Registered User
 
Pop's C-10's Avatar
 
Join Date: Jul 2010
Location: memphis
Posts: 2,537
Re: Headlight help

Quote:
Originally Posted by triophan View Post
stock output halogens the ($20 pair from AZone or Advance) are bright as day on low since I did the relays.
Now I'm wondering if I can put relays on the tails to make them stand out more (since I have '39 ford tails on the stepper)
I was wondering tha same thing about tha tails also..
Pop's C-10 is offline   Reply With Quote
Old 02-17-2011, 07:05 PM   #16
WigglesTheHoly
IT Guy/ Father/ Chevy lover
 
WigglesTheHoly's Avatar
 
Join Date: Feb 2010
Location: Hoisington, KS
Posts: 568
Re: Headlight help

I just replaced my headlights with Sylvania xtras's and I didn't notice any real improvement in the output. So this would help with the output correct?
__________________
78 Chevy (Pictures) SOLD
79 Chevy LWB (pasture)
83 Chevy LWB (crushed rusted beyond repair)
02 TrailBlazer SOLD
03 VW Passat wagonSOLD
95 extended cab silveradoSOLD (still in family)
05 Crew Cab Silverado 5.3 (The Turd)

WTB: 66 El camino

Technology Specialist aspiring to be a gear head.
WigglesTheHoly is offline   Reply With Quote
Old 02-17-2011, 07:39 PM   #17
yellowGT
Registered User
 
yellowGT's Avatar
 
Join Date: Jan 2006
Location: Garland, TX
Posts: 970
Re: Headlight help

guys I just noticed that the relays in the diagrams are 4 prong and not 5 prong. Would it matter and could a 5 prong be used since I have a bunch of 'em. You would just have an unused wire...right?
__________________

'84 swb chevy
'69 swb chevy
'68 swb chevy
'95 Impala ss-sold
'89 chevy crew cab dually 3+3
yellowGT is offline   Reply With Quote
Old 02-17-2011, 09:49 PM   #18
hatzie
Moderator
 
hatzie's Avatar
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
Re: Headlight help

Quote:
Originally Posted by yellowGT View Post
guys I just noticed that the relays in the diagrams are 4 prong and not 5 prong. Would it matter and could a 5 prong be used since I have a bunch of 'em. You would just have an unused wire...right?
The 5 prong relays are SPDT and the 40 amp versions are cheap. The standard Bosch or ISO relay sockets have 5 holes but there's no reason that both 87 & 87a have to be wired.
hatzie is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:01 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com