Halogen headlights w/'56 switch
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All headlights, horns and electric fans should be run off a relay for reliability. A relay is nothing more than a heavy duty remote switch activated by a second controlling switch. The relay contacts are designed to handle high current draw but need very little current thru the controlling switch to activate it.
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#8
You can buy one of the relay kits, several hotrod wiring companies make them. I went to the junkyard and grabbed some bosch headlight relays from a late model GM car with halogen headlights. It came with nice brackets also. I wired both high and low beams on the relays, since who knows what headlight technology will come along in the life of this truck.
#11
Join Date: Jul 1997
Location: Beautiful Hueytown Alabam
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here's where being old helps..... old FTE guy Steve Delanty wrote this years ago...
should help
Whiter Whites, Brighter Brights .: Articles
and if you need help understanding relays...
USING RELAYS TO CONTROL
later
john
should help
Whiter Whites, Brighter Brights .: Articles
and if you need help understanding relays...
USING RELAYS TO CONTROL
later
john
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Not only the truck line. I bought a new 1967 Ranch Wagon and had the flashing light problem. The problem showed up late one night several hundred miles from home. Repair: Direct defroster duct to blow on the light switch.
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I get a chuckle out of people using Bosch relays to upgrade their car/truck. They are absolutely the bane of the 944 world. The Bosch unit that powers up the ECU and fuel pump fails so regularly that it is advised to carry a spare in the glove compartment (a $45 spare). The one for the A/C costs $170 and is just as bad.
#15
I'll let you know when the mod fails me. Ten years and counting. Spare five dollar relay under the seat just in case. Beats the heck out of crappy headlights Ross. 18GA wire don't cut it.
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