Installing Slee's new style headlight harness (1 Viewer)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

I would have to say the Slee harness wont help. the only thing you are eliminating(by installing) is the wire run to the passenger headlight, and the original bulb sockets for the headlights. When you say you fiddled with the bulb socket, which bulb? that got it working right. Another question, does the running light and brake light function properly on the right side all the time?

The bulb I messed with was the left brake light bulb. As for the right side, it works properly all of the time.
 
The bulb I messed with was the left brake light bulb. As for the right side, it works properly all of the time.


hey akarilo,

i had the exact same issue you are having. it turned out to be the rear light harness was jammed down into the fender and was being pinched. i ended up having to replace the rear harness.
good luck
 
Just installed today following your write up. Perfect instructions, had it done in under an hour. Thanks again!
 
I have had one of these harnesses sitting around for over a year. (In the same box as a set of panhard bar adjusters, a TruSpeed, and the speedometer drive o rings) I need to get after it.

I still need to get to this...

What are the differences between the "New" Slee harness and the "Old" one?

Dave
 
I still need to get to this...

What are the differences between the "New" Slee harness and the "Old" one?

Dave

From what I remember reading some of the units were prone to failure. Headlights stop working.
 
From what I remember reading some of the units were prone to failure. Headlights stop working.

Hmmmm, I wonder, A) When the changes were made, B) If I can easily identify if I have the old or new, and C) when I actually got mine. I think it has been a couple years at least.


Dave
 
What are the differences between the "New" Slee harness and the "Old" one?

Hmmmm, I wonder, A) When the changes were made, B) If I can easily identify if I have the old or new

I believe the new harness has a 5-pin relay vs the 4-pin on the old. Apparently the old relay is prone to failure and hard to source. Luckily the pins can be removed from the connector that plugs into the relay, so it may be possible to convert from the old to the new by finding a new relay and connector. This is still on my list of things to do :eek:
 
If you call Slee they can tell you. It was an intermittent failure due to manufacturing issues on some of the early ones.


From my experience with the old-style Slee harness, it was not a manufacturing problem on Slee's part (it was well-made like all of Slee's stuff), but rather the relays themselves that seemed to have problems. The new harness uses automotive-style relays which (in my experience thus far) are much more reliable.
 
I'll go dig it out at lunch today to see how many pins are on the relay.
 
The old harnesses had a relaly with the number 804-1A-C1 on it. It looked like this.

old_relay.jpg


It was a automotive relay, just not a very common one. We decided to replace them with a more traditional 30amp relay that is easily found. The old harnesses can be depinned and the sockets changed. It is just a matter of how comfortable you are with figuring the circuits.

The new one uses a more traditional style that can be replaced with a Bosch or Tyco unit, rather than the generic one we supply. The reason for the generic one is cost. Tyco or Bosch relays are a lot more than generic ones.

All new harnesses that started shipping this week is easily identified by the black sheathing vs yellow on the older harnesses. Auxiliary light harnesses always had the more traditional style relay.

PS, Hayes, you were have the types swapped in your post above.
 
I must have a very old one. It takes the early relays and it has some funky little black box that has a blue, grey, and a white wire going to it in the area of plug "G" and it has no plug "H"

Dave
 
Can anyone tell if the plugs have been upgraded on the new harnesses, as opposed to the old ones that could encounter corrosion problems? I would like to do this upgrade to boost my HIRs brightness a little more, but like others have expressed, not if reliability takes a hit due to worse-than-oem
 
Last edited:
Can anyone tell if the plugs have been upgraded on the new harnesses, as opposed to the old ones that could encounter corrosion problems? I would like to do this upgrade to boost my HIRs brightness a little more, but like others have expressed, not if reliability takes a hit due to worse-than-oem

I have only ever seen the new ones so I can't really comment other than to say I love this mod and I've had zero issues with it myself.
 
Ok so its been over two years now and while I was installing some new wholesome goodness under my hood I glanced over to the Slee's fuseable link wires at the battery. I was blown away to see that the wiring cover has deteriorated and is MISSING from both end of the fuseable link to the point that both wires are exposed :eek:

So I will be ordering two sets (one for a spare) from Slee in the morning. Unless Christo is up checking out mud now :D

So folks, check your fuseable links!
 
I just put one of these harnesses in a few weeks ago, but did not notice a fuse, did I miss something? It just had a circular connector to attach to the battery terminal, and that wire ran into the mass of relay wiring.
 

Users who are viewing this thread

Back
Top Bottom