Rear locker, I'm confused.

for everyone trying to figure it out saying its so complicated why not do this
Go to page 247 of your owners manual or this PDF of it and read it.
It explains everything that turns on and off when in 4Lo and what you can have on or off with the rear locked.

From it
Locking the rear differential●When the rear differential is locked, VSC is automatically turned off.

(The rear differential lock and VSC off indicators come on.)

●The following systems do not operate when the rear differential is locked. It is normal operation for the ABS warning light and VSC off indicator to be on at this time.

• ABS
• Multi Terrain ABS (if equipped)
• Brake assist system
• VSC
• TRAC
• Hill-start assist control (if equipped on 4WD models)

■ The rear differential lock is disengaged when●Vehicles without a smart key system: When the engine switch is turned to

the “LOCK” position

●Vehicles with a smart key system: When the engine switch is turned off

● 4WD models only: Turn the front-wheel drive control switch to “2WD” or “4H” position.

Never forget to turn off the switch after using this feature.

■ After unlocking the rear differential Vehicles without a smart key system

To check that the indicator goes off, turn the engine switch to the “ON” posi- tion, but do not start the engine.

Vehicles with a smart key system

To check that the indicator goes off, turn the engine switch to IGNITION ON mode, but do not start the engine.

 

theoretically you shouldn't have a problem.
ABS, VSC etc all are based on the computer and difference in speed.
If it senses one wheel slipping it will apply the brakes to that slipping wheel etc.

But if you have the rear locked it won't see a difference in speed because its locked, there is no difference in speed.
besides if you use the locker in 4Lo most of those systems turn off. Honestly I don't see the huge hype to wanting the rear locked in 2hi unless you're looking to do donuts.

But either way, it shouldn't be an issue. Only issue I see is driver error causing damage. If you lock the rear when it shouldn't or don't turn off the traction aids anyways yourself when using the locker it might do damage. With the factory one it just turns off all those things for you.

 

It's useful for rotating the truck and it's just a boat load of fun on dirt/gravel roads. It's more a high speed type thing and not really needed for technical trails but I spend a fair amount of time in Baja and I enjoy driving like a moron!

 

Can you not slide the rear with the open dif and vsc off?

Truck really doesnt have enough power to drift it, even on dirt. Be careful not to get too sideways or it could roll when it catches grip due to lack of power, shifting, or you letting off

 

This is exactly why I want to be able to lock the rear in 2wd. The locker helps in both cases you just mentioned. There is a reason that there's a few of us on here desiring this option. There's also a reason that pretty much every 2wd race car in the world has a locked or limited slip rear end regardless of what kind of race vehicle it is or what surface it races on. You just hit on 2 of those reasons.
They do so much more than just help you get over rocks and roots.

Think of a locker like that old BASF commercial. Lockers don't make the trucks but they do bring them to life.

 

Why would anyone spend 35-40 thousand dollars on a piece of machinery and not read the manual?

Millenials.

SB

 

No shit

 

just lazy people lol.
I read it I'm a millennial...

 

I've owned Tacomas my whole life and 1 Ford Raptor. I'm trying to figure out which one I want to buy. I don't have a manual in a glove box parked in the driveway. Some people like to know what they're getting before they plop down 40k. I prefer the Tacoma for daily driving but I spend a lot of time in Baja with a trophy truck team, so a Raptor would be awesome down there but the Tacoma better up here. I'm trying to figure out if I can have my cake and eat it too. Thank you for all the helpful replies, and the guys that couldn't help but wished they were stand up comedians thanks to you too for spending zero time thinking about why someone might think differently than you or why some people think a locker in 2wd at any speed they choose would be awesome. I'm especially grateful to ARB for understanding that while tacomas are awesome for most people that some people may want more performance out of their vehicles. Problem settled for me. TRD Offroad with an ARB locker. Best of both worlds with compromises I can live with like less hp, less suspension travel and having my friends tease my on the radio as they fly by me but I will be able to park my Tacoma without it taking 2-3 tries and get a whooping 5mpg better.
I can always drop 10k on her to put the total chaos mid travel front and rear on her if I choose.

 

PS. My raptor was a new 2012. The salesmen really had no idea how it all worked, the best advice for the numerous settings was yes, reading the big old book and on Internet forums full of knowledgeable people who could speak from first hand experience. That's all I was looking for.
Thank you

 

And you and I would drink beer tailgate to tailgate and commensurate about life.

SB

 

I use to live and I purchased my truck in south Florida. I drove it to Alaska. I use it off road here all the time. I use crawl on some of the muddy roads as a cruise control. Turned all the way up, crawl will move you at 4mph. I tend to get heavy on the gas and sometimes catch myself going 8-10 mph and end up dipping hard into a hole or bottoming out. I set crawl and just move along.

I used diff lock once to get up a muddy steep hill. It got me up. MTS is eh.. I really can't say that it stood out to me. It might be doing something different.