Trailer Lighting
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Senior User
Joined: Jul 2001
Posts: 190
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From: Warrenton, VA
Trailer Lighting
'79 F-150 here...looking to hook up wiring for a 4X6 trailer. It has the small square 4 pin connector. Just wanted to know if I could splice into the existing wires for the tail lights on the truck? If that's the common area, will that blow the fuse drawing too many amps??
Wrench Head
'79 F-150 2WD 4-spd O.D. 302 bored .040" 600 cfm edelbrock carb with intake. 141,300 miles
Wrench Head
'79 F-150 2WD 4-spd O.D. 302 bored .040" 600 cfm edelbrock carb with intake. 141,300 miles
Posting Guru
Joined: Jun 1999
Posts: 2,415
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From: Comox Valley, Canada
If all you are hooking up is the trailer lights, brakes/turn/running, then splicing into the the rear harness wont be a problem. Just do not add anything else on the circuit.
Also make sure you seal the splices from the weather. If you do not do a good job on the splicing/sealing it will come back to haunt you with interesting light problems in the future
Also make sure you seal the splices from the weather. If you do not do a good job on the splicing/sealing it will come back to haunt you with interesting light problems in the future
Moderator
Joined: Jan 2001
Posts: 57,023
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From: Virginia
If you find when you hook the trailer up, your turnsignal lights blink very fast and dim, you will need to change your turnsignal flasher under the dash to a heavy duty unit. They have a whole range of flashers, and prices, but the cheap heavy duty ones will fix the fast blinking problem just as well as the expensive ones.
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Senior User
Joined: Jul 2001
Posts: 190
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From: Warrenton, VA
Well, got everything running...sure enough the blinker was quick and dim. So where are these heavy duty flashers available at?Which kind should I get, or is it just pick and choose. Also, if I change to a heavy duty flasher, will that make the blinker real slow without the trailer lights hooked up?
WrenchHead
'79 F-150 2WD 4-spd O.D. 302 bored .040" 600 cfm edelbrock carb with intake. 141,300 miles
WrenchHead
'79 F-150 2WD 4-spd O.D. 302 bored .040" 600 cfm edelbrock carb with intake. 141,300 miles
