Lucky 07 PreRunner to 4x4 Conversion

Thanks. I'll let you know.

 

What's that for? Thought everything would work with the ADD harness and whatnot?
Sorry I'm not savvy on how it all works

 

You are correct, it will all work with stock/OEM wiring and switches. I opted to fabricate a custom part for a cable operated ADD engagement, taking the switch and electric motor out of the equation.

 

You should sell as a kit once all worked out. I'd pick one up, such a weak link.

 

So is the mechanical cable actuated system economically and physically easier than the electronic ADD system?

 

As long as the price is fair, not having to worry about the shitty electronic actuator going out is worth it for me. Its a pain in the ass to change and its a $250 piece.

 

Exactly. I've had 2 fail on me. One was my fault for traversing some deep water that went over the breather hose in the engine bay. Other one just stopped working one day, they are like a Rube Goldberg invention inside, all to simply move a shift fork over 1". Worst of all Toyota sells it as a compete part so you can't fix any individual pieces, really a smart design by Toyota to get more business though

 

Well holy moly! What's the price on that mechanical piece and where's it getting mounted!?
You've got a point that it costs less in the long run. I just imagine a nightmare running cable and the other stuff that goes with it.
Like if a wire gets cut, it's a simple splice.
If a cable is then it's a little more troublesome.

 

I am still working out a few final details, but if I decide to make a run at producing this thing, the goal will be to price it just below the electric ADD price. Since I have gotten quite a bit of interest, I am working on what will be required to make it legitimate and possibly useful for other Toyota ADD applications... 4runners, FJs, Tacomas... knowing that most of these trucks will still be operating their transfer case by actuator. In my application, I am going 100% manual mechanical...

The part of this prototype you havent seen yet is the custom bracket to secure the control cable in the tight confines around the front clam shell while maintaining the correct alignment and cable bend tolerances. I will have more to show in a few days.

I am definitely inspired produce a kit, but I want it to be a little more refined before I put it out there.

Plus, I'm trying to finish the 4x4 swap - I still have a tranny to switch out thats been sitting on the floor in my garage for over a month.

 

Can't wait!

 

I came up with a simple safety mechanism that would allow you to run engaged or not, even if the entire control cable were severed. More details will follow. Pictures and maybe a video.

 

ADD off


ADD engaged

 

Badass

 

That's awesome.

 

Last few things to do for this setup is to cover the linkage with a sealed bellow, attach a guard to protect the linkage, and the safety mechanism which will allow the arm to be held in the engaged or off positions in the event the cable is severed. The only thing stopping me from installing it on my truck right now is the bellow. Although the cable I am using has some stainless steel components, I want to completely cover and protect it anyway.

 

and one other thing... the breather. The OEM part has a breather tube on the side. I'm not sure I need to integrate one, but if I do, it will be on the top.

 

I say do it. I can't wait for this to be done! Then when you finish write a book on it and sell it for $15 a pop. I'd buy it

 

Minor diversion. Sold my open diff in favor of an elocker.

 

why the downgrade? I would have just slapped an ARB in the 8.4" diff versus buying the elocker axle. The other axle bearing caps have a nice large bearing gurdle to help prevent ring gear deflection.

 

Understand the strength differences on the open versus elocker. In this case the primary driver was cost. I wanted a selectable rear and didnt want to spend $1500. A local guy offered to buy my open. If I break the elocker rear, or have reliability issues, I'll go open/arb. For now, I will have selectable for a small fraction of $1500.