Seems I remember someone on here advertising a headlight relay/bulb/harness upgrade, anybody know where to get one or have any recommendations or remember that seller? Looking to upgrade the headlights on my 76 D300, thanks

crackedback is doing them, gets stellar reviews.

Daniel Stern is still at it, I think?

https://www.danielsternlighting.com/

He makes great, high quality products. I have his headlight relay harness upgrades on both my Mopars and one of his convertible top relay harnesses on my '68. Highly recommended.

Really not too hard to do yourself for about $15 in relays and terminals.

Nacho has posted this on the forum multiple times. Do a search.

Joe

Found this from Nacho....

I didn't make that diagram ¿?¿?¿?¿?, but is pretty much the correct way to make it ( including the alternator source )

LOL

however is pretty much easy to make a relay upgrade by yourself. And you can even make it without cut a single wire and install the relays into the cab, being protected from heat and oil, but just if you have your ammeter wiring upgraded, since you should take the power for relays from amm stud.

On my car I used halogen sealed beams. I hate HIDs, Leds and anything like that. Sure they suck less load than Halogens, But I'm stuck with the old fashion halogen "yellowish" light ( and sealed beams )

Daniel Stern made that diagram

yes definitelly not me. I could have forwarded or included on some thread or reply ( which I don't even remember either LOL ), but I didn't make it

This is the one I made, with relays hidden down the kick panel. Didn't need to cut a wire, just remove terminals from floor dimmer switch plug and install on relays plug, and link the floor dimer switch and relays with a wire section on same color to still trigger the relay.

just needed the relays, plugs for relays, 8 packard 56/58 terminals, violet wire piece, red wire piece... 2 eyelet terminals, and red and black wires for positive and ground. Couple of fuses or even better a breaker.

It can be made also similar close to bulkhead into the cab side, just that the red and violet wires originally going to bulkhead will go to 86 terminal, and the wire piece to replace into the bulkhead will go to 87 terminal

I apologize for giving Nacho credit....I just assumed any wiring help was his...LOL
He's been a wealth of help in this subject.

Joe

you can use interlocked sockets to make the block with a mount ear to attach it somewhere and reach the relays anytime




Interesting, just found there are relays with serviceable fuses attached! This saves on installing process for the fuse.

It does take some work, but as always it’s a trade-off, your time or your wallet.
I put my relay out of sight under the battery tray.

IIRC, relay kits were around $160. Nice thing about them is the wires are all color coded and it comes with interface plugs to make them truly plug and play.

Sure you can cobble your own together if you want to go buy all the parts and wire and plugs to do so.

Jeez, that's a lot of good info, thanks guys... , I looked at all the options listed and have a message in to crackedback to see what he offers. Thanks again

I knew that wasn't Nacho's diagram because he wouldn't normally show or recommend connecting the alternator to the battery.
That diagram is based on Volvo or something with a hand operated hi/low beam. LOL.

There's at least three different ways to skin the cat. All do the same thing.
The way Crackedback makes the harness, it can be installed and removed with no cutting of original wiring.
Assuming the '76 truck has the same power feed arrangement as the earlier cars, connect to the alternator not the battery.
Looks like Nacho cut in in at or near the hi/low switch.
The way I did mine was to cut in near the original headlight sockets.

OBVIOUSLLY LOL



yes on kick panel area, but no, I din't cut any wire but untapped a bit of the harness there, removed the terminals from the dimmer switch plug and inserted to the relay socket 87 terminal. Then use a wire on same color ( violet for lows and red for highs as factory ) to link the floor dimer switch with the 86 terminal of relay at socket with new Packard terminals. Then taped everything back and it looks like nobody touched it LOL... except for ne new "pigtail" ( also taped along with teh rest of harness ) coming out from underdash harness around kick panel with the sockets and relays

Something like this I made for the low and mid AC speeds... It seems as an untouched harness... but if you pull out the harness will find the relays. Not a single wire cut. ( I made this for all AC-Heater speeds and also headlights ).



Sorry the blurry pics, they were made with an old Nokia 6125 phone maaaany years ago

I Couldn't find interlocked sockets with the mounting provision in Vzla when I made the upgrade, althought they are interlocked, Will upgrade that some day in the future with fused relays too.

Ive been running crackedback’s harnesses for years. Good quality product.

No worries Joe. Both are a wealth of info and both diagrams will work. I do like Nacho's idea on the kick panel but I already installed mine under my battery tray and wired it.

Same here BDW

Mine are under the battery tray too, but now visible with the battery in the trunk....

Joe

I'm going to have to tape all my new wiring like yours, the convoluted
wire protection I used is clumsy looking.