Rear locker, I'm confused.

I've done a bunch of searching here and other forums (ttora) I'm a simpleton and confused. Is it possible on the 2017 Toyota Tacoma TRD Offroad model to turn off all the nannies and still lock the rear end? It seems that there is a locker on the Offroad and the Pro other than atrac, if so will it stay locked at any speed? The more I search the more confused I get.

 

so far no.
2nd gen had relay wire mods to get it to work in 4hi and 2hi
but so far no one has found any way to get it to work in the 3rd gen

 

Yes, just hold down the tcs button for a few seconds. you have to be in 4lo to use the rear e locker.

 

Thank you.

 

Quick question, on the OR, if your in 4lo and rear is locked, can you engage the MTS also and have it act as sort of a front locker? Maybe if in rock mode for least slip?

Will this work? And am I understanding that properly?

 

Pretty sure it needed to be out of MTS to lock the rear when I tested it out the other day.

 

It's really great that I need a degree in engineering to figure out the new and improved 4wd system in the new taco.

 

They need to simplify it. theres too many overlapping systems and the buttons/interface is too complicated

 

It's actually quite simple for this case. You have to be in 4LO to lock the locker, and in 4LO, all systems are off. You can turn on A-TRAC to "lock" the front if you have a manual transmission (not sure about MTS on autos), but it will turn off if you go faster than 3 or 8 MPH (can't remember which).

 

I believe mts works with the locker engaged in low with an automatic.

 

I have yet to really play around with crawl control and mts but I was wondering if anyone knows if you have to select a terrain in mts then turn crawl control on or if mts matters with crawl control? I would think you would have to select a terrain in mts then turn crawl control on so it knows what type of terrain your on.

 

I don't think you can do MTS and crawl control at the same time. I think it is one or the other.

 

I havn't played with them much either. But from what I've seen you can only use one system at a time.

Crawl control is basically just a cruise control. Turning the knob lets you select between 5 speed settings.

MTS limits wheel spin using the brakes and you can select between 5 different terrains.

 

Thanks for replys I guess I will have to get out there and play around with it. Oh and if anyone didn't know that if you hold down the traction control button for about 5 seconds it will turn off traction control.

 

To anyone who actually uses their trucks heavily off-road; do the new whiz bang features actually allow the track to get in and out of any places that simple front and rear lockers wouldn't?

I live in the land of the flat, down here in S. FL, so my main 4x4 uses are mud, sugar sand and boat ramps, including dirt/mud/sand boat ramps, and maybe crossing a few small hills or ditches. In my personal use cases I don't envision the new electronics giving any advantage over simple locking diffs. But it would be interesting to hear from someone who has experience with more substantial obstacles.

 

No. locking diffs are superior.

However the MTS is superier to open diffs

Lockers>MTS>open diff

The crawl control is useless to me but MTS does work and is functional. It brakes the spinning wheel which sends power to the wheel with grip.

 

A mechanical locking differential up front will make the vehicle very difficult to steer when engaged, which limits maneuverability. Locking the front wheels together also puts much higher stressed on the CV joints and tie rods, which will cause breakage of these components unless the whole system was designed with a locking front in mind.

Usually, when people add an aftermarket front locker they use it very sparingly and only briefly during simple straight-line maneuvers. Being able to use MTS all of the time and while steering is actually a huge advantage.

In your stated use case (mud, sand, boat ramps) your front wheels aren't frequently going to see massively different grip levels in the first place, so MTS should be more than sufficient and you can maintain maneuverability in the process. Win-win.

 

I just want to be able to lock the rear in 2wd without my truck stealing power from me. Hopefully somebody will figure out a cheat, ecu tune, or mechanical locker for that.

 

^ this

 

I emailed Arb they make a locker for both 2017 Tacoma sized rear ends. I'm waiting to hear back about what kind of mischief it plays on the truck, like would I completely lose 4wd in the front because the computer is freaking out.

Here is some of their answer on my initial inquiry.
The 8" rear axle uses our RD132 if it has 12mm head bolts to attached the
3rd member to the axle housing. The 8.9" axle uses our RD232 and has 14mm
Head bolt