Traditional limited slip differential?

It can only be *shifted* from open to locked below 5 mph and that's only because Toyota created a software control to limit it. Once locked it can be run at any and all speeds achievable and shifted back to open at any speed as well.

 

Think it costs a little more than that. They have to add the electric/hydraulic master cylinder too.

 

Lots of vehicle have and electronic-boosted master cylinder without having crawl control. I recognize your point, but it’s not necessarily something that wouldn’t be in there anyways.

keep in mind, Toyota achieves its crawl mode, using drum brakes in the back. It ain’t that high tech!

 

But it's not there unless you have the Pro or OR. So clearly there's a reason Toyota doesn't put it on all the models. And that's because it costs them more.

And since its Friday, I think we both can agree its just another point that makes the OR better than the Sport.

 

you know it brother!

 

How so?
They're both GKN electronic lockers...

 

No Nissan has enough ground clearance to actually go off-road, so the Nissan drivers think they are godz locking it up on a gravel road.

 

I’ve been saying this for years. Everytime I see a frontier I notice how low the frame sits. Ground clearance is no better than a Subaru.

 

Toyota recommend not to drive with the locker on , over 5 mph. No where mention how fast you can drive with locker engaged. And always unlock once you are able to move forward.

Note: Aftermarket lockers - Never go over 25 mph. ( nothing to do with our Toyota).

For the TRD OR and PRO, TrueTrac limited slips DO NOT FIT or works ( front) .

SR5s and other models Adding a Truetrac to the front diffs , is a huge benefit, giving more traction.

I now realize having crawl controls is a great system, almost like having lockers all around. . ( not perfect) I am glad to have this on my 2019 TRD. Noisy and I am still learning more.

Thank you for all of your info’s. And inputs.

After Re- Reading the Manual , it does answer many questions, but I couldn’t find ? Can you drive in crawl control with lockers ON? Maybe NOT?

 

You appear to have some misconceptions about the traction control modes. Here is a good read.

https://www.tacomaworld.com/threads/3rd-gen-traction-control-modes-explained.530695/

 

Driving over 25 mph with the differential locker engaged makes very little sense unless perhaps you have 2wd model and you are either drag racing or driving fast in the desert. Lockers are generally for crawling crawling over obstacles. TRAC is the used at high speeds. ATRAC/MTS is used at slow speeds. Crawl Control is basically off-road cruise control. Don’t confuse it with ATRAC/MTS.

 

There is a video of a person who was able to turn on the rear lockers in 2wheel mode. Requires cutting and joining wires. Interesting idea. But why not just go into 4 wheel low mode? To use the lockers ?

Another question Or thought here? Why does the locker only works in 4-low and NOT in 4-High?

Because most people prefer driving in sand in 4-high? It would be nice to have the locker ON in 4-H. Although you would limited to stay under 5 mph. In just 4H only off course you can drive in any speed.
This is we’re cutting the wires and use lockers in 2W or 4H? May be handy?

 

No any time locker on 3rd gen

 

I’m not entirely sure why Toyota prevents the locker from being engaged outside of 4lo, but hear are some thoughts.

1) safety concern: the locker interferes with steering more than 4wd alone does.
2) reliability concern: customers engaging their locker while driving to the mall could result in larger numbers of failures.
3) it’s not particularly useful to have a locker engaged outside of serious low traction situations and the truck has traction control for those other situations.

I have a locker, I visit off road parks and off road locations on a regular basis, and use 4lo + ATRAC 100% of the time and the locker 10% of the time.

 

I would never drive with a locker or lockers on at high speeds . I was just something I read not to do.
As I watch the dune guys running in those sandy hills and running fast too, I wonder what they use in the diffs?

This happen to a friend of mine in the 70’s . He brought his first 4x4 ( Scout) The sales person ask if he wanted a limited slip in the rear? It was a option add-on , $800 or so. . He said “NO”. . The first time he drove on a sand beach, got struck, couple of hours later , he made it to hard ground. Biggest regret he made. He stop going fishing a year later and brought a car. The funny part he was only 10 feet from the road. Struck in the sand.

Never buy a 4x4 with open diffs! Sure you can always add a LSD or locker.

 

Clutch pack LSD suck because they wear out. Trac Lock is where it's at for an LSD. No friction modifiers needed and no packs to wear out. Clutch packs can be shimmed to be a little higher bias, but the Trac Lock is like 3:1, so it's not bad.

 

The ultimate set up for sand dunes is having a spool installed in your diff , that will give you the best traction

 

Gears in LSD are consider superior over clutch packs. All my 4x4s in the past , most of them was from factory were the clutch pack styles. I have to say they lasted for years, never had a failure. I am sure many we’re pretty worn out and needed replacement clutches.

 

Someone mention I may have a misconception of the Toyota 4x4 system and how it works. And how lockers and limited slip works.
Maybe? I can only say I like what a LSD and locker do for us. I do not need to know how actually it works, main thing it performs the way we want it to work. And gets us from being struck.

VSC , Trac, Auto LSD, A-Trac, MTS, Rear locker, is very detail in the manual. Do I understand it all, I am guessing NO. Just that it there and works. What is turn ON or OFF, in 2W, 4H and 4L , Toyota has figured this out for us.

Thank you , Yes I am still learning, and may never know it completely too.

I like using my iPhone, but still I do not know all it can do? Do I need too? Lol

 

This is basically absurd. A locker is most useful when it's actually used and can and should be used when needed at any speed. If you're in limited traction off-roading, lock the damn thing and leave it that way.

I lock my front diff all the time on pavement, in 4HI while traveling over 50 mph, just to function test it. I'll do the same after taking over control of the rear factory e-locker.

Understanding how these things DO actually work allows you to know how they can truly be utilized effectively, properly, and safely.