Heavy duty headlight relays - good news!
#16
02-01-2012, 02:35 PM
Posting Legend
If I knew what Spock was smiling about I might be worried. Or maybe even smiling with him. But, since I don't I'll continue sitting in the dark.
#17
02-01-2012, 05:10 PM
But, on the fuse/breaker subject I would lean strongly to a breaker. I believe our trucks have them, and the advantage is that your lights come back on when the breaker cools down - assuming you use the auto-reset style. In fact, having a parts truck, I may know exactly where to get some!
#18
02-02-2012, 12:32 AM
Posting Guru
#19
02-02-2012, 07:56 AM
Posting Legend
#20
02-02-2012, 11:05 AM
Post Fiend
#21
02-04-2012, 07:41 PM
#22
10-28-2015, 12:33 PM
Some past threads have discussed the need and benefits of adding relays for the headlights in our trucks - better illumination and removing the electrical load from the headlight switch.
Some members have made-up their own harnesses while others [me] have purchased the one from LMC, which is plug-and-play. It also has been discussed that it almost impossible to find replacement relays, due to the fact that the 30A ones supplied with the LMC harness are 4 pin rather than the more common 5 pin found at most auto parts stores.
Yesterday, I received a new LMC catalog and was pleased to see a new addition... yes, the replacement relays listed right below the heavy duty harness. The part number is 47-3652 and the price is $4.95 each.
By the way, I have installed two of these systems. One in my son's 1984 F150 and the other in my 1986 F150. We have had no problems and are quite pleased with the increased brightness, due to getting full voltage to the headlights. However, you need to install a fuse in the line which feeds power to the relay. There are two such lines with each kit; one for high beams and the other for low beams. For some reason, this was omitted as delivered. A 10 or 15 amp fuse should be sufficient for any legal wattage bulbs used.
Some members have made-up their own harnesses while others [me] have purchased the one from LMC, which is plug-and-play. It also has been discussed that it almost impossible to find replacement relays, due to the fact that the 30A ones supplied with the LMC harness are 4 pin rather than the more common 5 pin found at most auto parts stores.
Yesterday, I received a new LMC catalog and was pleased to see a new addition... yes, the replacement relays listed right below the heavy duty harness. The part number is 47-3652 and the price is $4.95 each.
By the way, I have installed two of these systems. One in my son's 1984 F150 and the other in my 1986 F150. We have had no problems and are quite pleased with the increased brightness, due to getting full voltage to the headlights. However, you need to install a fuse in the line which feeds power to the relay. There are two such lines with each kit; one for high beams and the other for low beams. For some reason, this was omitted as delivered. A 10 or 15 amp fuse should be sufficient for any legal wattage bulbs used.
1) Does the stock highbeam switch (left foot) still work the same with this LMC harness installed?
2) How do you install the fuse you mention needing in each relay power line? Do you cut these wires and somehow put a fuse inline on each wire? If so, is there an easy and reliable way to install such fuses (some kind of pre-made fuse holder that crimps inline)?
#23
10-28-2015, 12:57 PM
#25
10-28-2015, 01:10 PM
Posting Legend
Here's a link to my post showing how I built my own harness and the auto-reset circuit breaker I installed instead of a fuse. If I had to do it over again I'd buy the harness instead of making one. But, I'd still use an auto-reset breaker so the lights will come back on if the fault is just intermittent. That's the way the auto manufacturers do it. And, I bought the breaker at O'Reilly's.
#26
10-28-2015, 02:19 PM
Here's a link to my post showing how I built my own harness and the auto-reset circuit breaker I installed instead of a fuse. If I had to do it over again I'd buy the harness instead of making one. But, I'd still use an auto-reset breaker so the lights will come back on if the fault is just intermittent. That's the way the auto manufacturers do it. And, I bought the breaker at O'Reilly's.
#27
10-28-2015, 02:35 PM
Galendor,
Purchase one replacement relay [36-3592], in case one of the two, which come with the kit, ever fail. They have a different pin configuration than what is normally stocked at the local automotive parts store. It has been 3+ years since I installed two systems and I have not yet experienced a failure, but I do have an extra relay for both trucks.
Good luck!
Purchase one replacement relay [36-3592], in case one of the two, which come with the kit, ever fail. They have a different pin configuration than what is normally stocked at the local automotive parts store. It has been 3+ years since I installed two systems and I have not yet experienced a failure, but I do have an extra relay for both trucks.
Good luck!
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