Triple locked?

[ClassyJalopy]

A lot of posts here on when to use them so going to focus on when to not use them.

• Don't use front in reverse!!!! Friend and many others have broke their locked front backing up.
• Don't use front if steering is turned sharply. The more you are turned from straight the more chance of breakage.
• Don't use front on steep downhill - you really want steering to function fully!!
• [In general front is only on for very short times.]
• Don't use rear on steep downhill, however in some cases it can be useful, but you NEED to be FAMILIAR with how lockers effect handling. It will be a white knuckle ride. If you don't know the cases where it is useful, best to leave them off.
• Don't use either front or rear on steep off camber slopes, you will slide sideways downhill. Can be fun to use rear for bat turns in the right place.
• On flat hard surfaces you may want to unlock even the center, those tires chirping when you steer means you are putting a lot of stress on the drivetrain.
• Locked or unlocked - wheel bounce is bad, very bad.

Side note: After I installed 4:88s and a Marlin crawler gear in the t-case I find I don't use my front and rear lockers as much as I did before.

Thanks for writing this. I do find the first gear in low range is still too fast for a lot of downhill situations - I bet the TC lower gear will make a big difference!
I was told before that I should have the rear locked when going straight down on very steep down slopes to keep the truck straight, is the uncorrect?

 

[MongooseGA]

I was told before that I should have the rear locked when going straight down on very steep down slopes to keep the truck straight, is the uncorrect?

If anything, I think it would go back to steering and maneuverability. If you're going downhill, you don't necessarily need the wheels locked as you're not 'driving' the wheels. I imagine keeping the rear locked will 'lock' you in to whichever way the terrain wants you to go as there's no variation between how each of those tires is turning. You may be able to skirt a rut or simply go over an object without shifting the whole vehicle in a slide if the axles aren't locked together.

Or maybe I'm a moron and just went around my butthole to make up some logic.

 

[Skidoo]

Thanks for writing this. I do find the first gear in low range is still too fast for a lot of downhill situations - I bet the TC lower gear will make a big difference!
I was told before that I should have the rear locked when going straight down on very steep down slopes to keep the truck straight, is the uncorrect?

I hesitate to give a blanket yes. Yes if is straight down and you have to be VERY careful with the brakes. On very steep slopes very easy for a brake to grab a little and if the rear skids sideways having it locked can make it too exciting for words. Getting sideways on a steep slope, well that is just not good.
Not going to offer advice for very steep slopes with a low traction surface (loose gravel, muddy, wet, etc.) as that is an advanced situation and if something goes wrong could be life threatening. Know some advanced folks who use both front and rear lockers for some downhill situations but then I am not at that level.

Before adding the crawler gear I did lots of very steep descents on medium to high traction surfaces and never felt the need to use rear lockers to keep it straight.
With the crawler gear its make the steeper stuff easier.

 

[Shortpencils]

Or maybe I'm a moron and just went around my butthole to make up some logic.

You, Sir, have a way with words.

 

[MongooseGA]

You, Sir, have a way with words.

I try.

 

[sammybones]

I just went back and re-read this thread, for some reason it’s much more interesting now.

 

[ClassyJalopy]

This showed up from Wit's End today. Thanks @NLXTACY!
The wiring harness is all setup for ARB compressor and solenoids which I do not have.
My plan is to use @sleelocker circuit board for the factory rear locker. I want to use the rotary switch to control both front Harrops locker and rear factory locker.

Does any one have pin out diagram for the rotary switch?
@Wermz is this something you have dealt with before?

 

[Wermz]

Haha yeah ive wired that switch in my non factory locker truck, used it with my arb air lockers and 2 100-series with harrop/eaton e-lockers.. hang on, ill grab a screen shot of the wiring diagram..

 

[Wermz]

Pin 4 is your power into the swtich
Pin 1 is your rear locker output
Pin 2 is your front AND rear locker output

 

[ClassyJalopy]

Pin 4 is your power into the swtich
Pin 1 is your rear locker output
Pin 2 is your front AND rear locker output

View attachment 2550787

View attachment 2550788

You da man! Thank you so much for sharing this! I hope to pay it forward some day.

 

[Wermz]

Youre welcome, im glad to help when i can

 

[Surfy]

Talk about first world problems.

"I can't use the special switch for my lockers because my car's night vision button is there".

Night Vision was one of my not so important upgrades. Did use sunvisor monitors to made it more usable.

Was lucky to get a military spec flir (real thermal camera) device, which you usually dont get outside of the us.

Was planned for watching animals in africa, and to be able to drive without light at night...

It is pretty scary just driving with termal camera view...

Surfy

 

[Patassa]

Hey.. I absolutely love the job that Zuk did on my front 3rd Harrop installation. Here's a story about the installation in the link below.

Gear Install Toyota

ZUK shares many close-up good pics of Toyota gear installs

www.gearinstalls.com

The Harrop already comes with a switch. Though it is too big to fit in slots.

I already have LSD in the rear that amazingly still works. I will most likely get Zuk to do the rear next year to have front and rear Harrops.

Here's an on off switch that I added. I plan to continue to lock the front independently from the rear.

www.CH4x4.com lets you custom design switch button covers.

View attachment 2435605

Was this front diff lock a template they already had or did you have to find this image somewhere and upload it? I want this exact switch for the front, and I'll use rotary for the rear.

 

[OwnerCS]

Was this front diff lock a template they already had or did you have to find this image somewhere and upload it? I want this exact switch for the front, and I'll use rotary for the rear.

Thanks. I have the same plan with the two position rotary for the rear.

I just made it up from their "design a button" widget at the following link.

CH4X4 Custom Laser-Etched Push Switches for Toyota

CH4X4 Custom Laser-Etched Push Switches for Toyota is a single throw ON - OFF switch designed to operate your 12 volt accessories or devices.

www.ch4x4.com

 

[OwnerCS]

Today is the day when I was really got to use the front Harrop eLocker. It was a game-changer in a couple of situations.

1) I backed into a snowdrift covered hole and found I had one front wheel in the air. The rear wheels (LSD) were swapping traction back and forth and couldn't get enough bite to push the truck out of the hole. I hit the locker switch, then gently applied the accelerator then it pulled me out with the one front wheel that was touching the ground. I'm sure not being in snow would have yielded a different result. This was one of those "oh darn" moments that turned out good. I was really worried about how I would get out of that hole if the locker hadn't worked.

2) When climbing a snow-covered mountain road it performed very well. I could have done it without using the locker. Though it added significant stability, control, and reduced wheel spin. Just aim it at the destination and let it eat.


Here's a picture of the down side of the mountain

 

[ClassyJalopy]

Today is the day when I was really got to use the front Harrop eLocker. It was a game-changer in a couple of situations.

1) I backed into a snowdrift covered hole and found I had one front wheel in the air. The rear wheels (LSD) were swapping traction back and forth and couldn't get enough bite to push the truck out of the hole. I hit the locker switch, then gently applied the accelerator then it pulled me out with the one front wheel that was touching the ground. I'm sure not being in snow would have yielded a different result. This was one of those "oh darn" moments that turned out good. I was really worried about how I would get out of that hole if the locker hadn't worked.

2) When climbing a snow-covered mountain road it performed very well. I could have done it without using the locker. Though it added significant stability, control, and reduced wheel spin. Just aim it at the destination and let it eat.


Here's a picture of the down side of the mountain

View attachment 2586106

What tires are you running?

 

[OwnerCS]

What tires are you running?

Cooper MTP.

 

[Skidoo]

oops