Chevy Horn Swap

[Germ]

Will a newer chevy truck horn work in an 85 toy? I cannot get a look at a new one any time soon so i was wondering if someone knows. I like how the chevy truck horns sound compaired to the wimpy toy horn.

[DrumBum]

forget the chevy horn, get yourself one of these, and you'll be set!



yes, that's a real big rig horn, air powered, straight off a semi... works great! i wired in a switch too so i can use my stock horn buttons for either the stock electric horn, or the air horn. i figured, i was putting on board air on anyway, might as well have a cool horn... ;D
but seriously, i don't think it'd be too hard to make a chevy horn work. the way the toyota one is wired (at least in my '80) is the horn gets a 'always hot' lead, and the horn button is the ground. so when you hit the button, it grounds to the steeing column, and the horn honks. so as long as the chevy one doesn't 'self-ground' (like through the mounting bolt or something) you should be fine

[Germ]

Looks Good! I thought about doing a big rig horn but thats just too much more for me, lol.

I will try to find out more info on this, and when i find the answer i will post an update.

Thanks for your help

[Germ]

I found some info if anyone wants it.

The Chevy horn has only one connector. It is for the + (positive). The
negative connection is made when you mount the horn. The case grounds
itself when it touches metal.

So, you'll have to use your imagination to mount this...here are some
steps to follow.
1) Your going to need to connect the Positive wire from the truck to
the connector on the Chevy horn.
2) The negative wire from the truck you'll need to connect to the case
of the horn.
3) This is the last, and hardest part. You need to mount the horn so
that no part of the case (of the horn) touches any metal part of the
truck. To mount mine I used a very short plastic sleve around the
bolt of the horn, along with some plastic washers. That way when
you attatch horn (using the bolt) The case is not actually
touching the metal on the truck. This is easier done that described.
You may decide this is just too much work and go get a horn with a
case that is not the ground (or negative).

[fourwd1]

All you need to do is use the stock horn power connector to power a relay, which then powers the horn.
Now you can mount and connect the Chevy horn in the normal way, eliminating all those issues.

[Mike Kelly]

Happy Birthday fourwd1

[Forgotten]

Hey guys I bought a small air horn from Harbor Freight not to long ago mounted it to the inside of my stock bumper and that sucker is pretty loud, but I was wondering if I bought enough vacuum hose and a tire filler upper could I use this as onboard air?

[fourwd1]

Not really, that little compressor can't handle more than the horn.

[Forgotten]

SH*T! I was hoping to have $15 onboard air on well