BASICS: How to tap your steering box for hydro assist (1 Viewer)

[nukegoat]

Not super hard, but for the noobs on this board who like pictures, here is where you tap the box. I recommend either removing the box, or hooking up a large amount of extra ATF and keeping the engine running so that the positive pressure expels the chips from drilling/tapping. I did the former, but you can try either way.

Basically just drill and tap like this:

 

[cybrstar]

What pump/mount you going to use?

 

[-Spike-]

stuff

I want to thank you for the multiple parts you've given me for my truck, that was very generous and greatly appreciated. It's been fun hearing about your escapades in the Hammers and other wheeling trips, and Richard loves talking about the packing material he uses for the trinkets he sends you. It's really too bad the mods didn't get to know you better before you got banned or perma-muted or whatever it is they do to you.

 

[BILT4ME]

That's the wrong box shown. It has too many T's in the name.

 

[jcardona1]

Can confirm, my tapped box looks like just like the diagram.

10/10, would DIY again.

 

[ChaseTruck]

Not super hard, ...

Buy it from PSC?

 

[Rwhat]

Can we add this to the FAQ?

 

[2fpower]

Spent 20 minutes finding a pic to determine if it was "TOYOTA" of "TOYODA"... I think it is the latter.

Agree that this is one of the best mods!

 

[Broski]

I concur one of my favorite modes. Theirs nothing like being able to turn with the locker on in the big rocks.
My was drilled, taped & rebuild by west Texas off road. They taped the 2nd O in TOYODA and down through the top like 2Fpower last picture.
I sure top or front like nukegoat diagram works.

you can see them the newer looking lines front and top.

 

[Broski]

I also recommend carrying plugs or caps to close the system in case of hose failure. Ask me how i know

 

[surfpig]

Not super hard, but for the noobs on this board who like pictures, here is where you tap the box. I recommend either removing the box, or hooking up a large amount of extra ATF and keeping the engine running so that the positive pressure expels the chips from drilling/tapping. I did the former, but you can try either way.

Basically just drill and tap like this:

So, closer to the "a" than the "o". And that should be a "d". Otherwise spot on.

 

[2fpower]

I also recommend carrying plugs or caps to close the system in case of hose failure. Ask me how i know

Great point... I have a feeling we have the same story.... damn ninja rocks....

 

[cruisermatt]

What pump/mount you going to use?

I heard he’s ditching the gas guzzling 1FZ in favor of a far more eco-friendly RTW (roof-top watermill) to spin his power steering pump

 

[nukegoat]

I heard he’s ditching the gas guzzling 1FZ in favor of a far more eco-friendly RTW (roof-top watermill) to spin his power steering pump

I told you that in confidence

 

[joez]

Not super hard, but for the noobs on this board who like pictures, here is where you tap the box. I recommend either removing the box, or hooking up a large amount of extra ATF and keeping the engine running so that the positive pressure expels the chips from drilling/tapping. I did the former, but you can try either way.

Basically just drill and tap like this:

I highly recommend being borderline blackout drunk while doing it as well. My neighbors came by as I was trying to drill it with one eye closed to cure my double vision, told me that was never going to work, and left. Proved his dumbass wrong.

 

[93yotasr5]

Delete

 

[Shipwreck]

I'm ready to tap my steering box. Drilling the port through the Toyoda is pretty straight forward. I'm flipping a coin on whether to tap the front of the box or through the spine on the top of the box. The front of the box seems easier, but some people mention it is more difficult to package the hydraulic lines. Not sure of possible issues with drilling and tapping the top aside from drilling too deep.

What is your preference for an 80 series with the tie rod and ram behind the axle? Tap the front or top?

 

[Squeegee]

I'm ready to tap my steering box. Drilling the port through the Toyoda is pretty straight forward. I'm flipping a coin on whether to tap the front of the box or through the spine on the top of the box. The front of the box seems easier, but some people mention it is more difficult to package the hydraulic lines. Not sure of possible issues with drilling and tapping the top aside from drilling too deep.

What is your preference for an 80 series with the tie rod and ram behind the axle? Tap the front or top?

I tapped the top and it was a little creepy. I had to go pretty slow to make sure I didn’t drill through the vein. Buuuuuut also had to makes sure that I went deep enough so that the tap worked in a good taper. Overall, not a bad way to do it if you’re careful and the packaging is pretty good for the hydraulic lines

 

[Broski]

I'm ready to tap my steering box. Drilling the port through the Toyoda is pretty straight forward. I'm flipping a coin on whether to tap the front of the box or through the spine on the top of the box. The front of the box seems easier, but some people mention it is more difficult to package the hydraulic lines. Not sure of possible issues with drilling and tapping the top aside from drilling too deep.

What is your preference for an 80 series with the tie rod and ram behind the axle? Tap the front or top?

Redhead & Redneck ram both tap top front of the box.
Not a Issue Packaging the Lines for me I like to run the Hydro line line over the top and down next to the frame. That way they drop right on top of the ram.

 

[Shipwreck]

I tapped the top and it was a little creepy. I had to go pretty slow to make sure I didn’t drill through the vein. Buuuuuut also had to makes sure that I went deep enough so that the tap worked in a good taper.

Did you finish by using a bottoming tap or grind the end of a standard tap to cut the threads deep enough without hitting the bottom of the vein?

@Broski it looks like your second line is tapped through the top of the box as well. I think this is my plan.