New LC Differentials (2 Viewers)

[Jetboy]

Added this above.

2024 Tacoma TRD Bro (with iForceMax, I think) It had a prototype sticker on it though.
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Which one is that?

 

[Jstawgn]

Only visual is the bottom rib location seems to be different.

 

[Jetboy]

Only visual is the bottom rib location seems to be different.
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The pictures are really interesting to me.
I think it's pretty obvious that the Taco and GX are different differentials, probably different housings. And it's also clear that neither is similar to the current 8.2. So it must be a new 8.2 if it's an 8.2, but it's also not the same as the 9.5 in the GX.

What stands out to me is that the Taco diff has a shorter pinion and a larger drive flange. The bolt spacing looks roughly similar to the 10.5" with the giant bolt flange. That might point toward inter-operability on drive flanges and shafts on the Tacoma - but why?? Also it's going to be a rock magnet. If you play too hard - it's a bummer to hit hard enough to collapse the crush sleeve more and end up with a bearing preload issue. (done that - )

Also - oddly the drive flange on the images above for the Taco and 9.5 have non-circular drive flanges on the diff, while the tundra has a circular one. This makes me think that the pre-production models might have non-standard parts and/or there may be different version of the 9.5 that we can't necessarily identify easily via pictures because they use different housings/components. That would be super odd, but at least I can say pretty confidently that the drive flanges on different between the LC300 and Tundra 9.5 axles. The Tundra 9.5 and 10.5 use the circular flange. The LC300 uses the star shape. In other images of the Tacoma it has a circular drive flange.

Compare:

vs:
Trailhunter Tacoma pre-production circular flange:

TRD Pro Taco (circular flange)

 

[AndrewTK]

This is an interesting video, they aren’t yet sure what broke but something in the transfer case/front end let go in their new Tacoma

 

[Jetboy]

This is an interesting video, they aren’t yet sure what broke but something in the transfer case/front end let go in their new Tacoma

I saw that. And it was on a pretty moderate obstacle. Not good. I haven't heard of people blowing up Tundra or LC300 front ends, so hopefully it's a one-off failure or something minor like a wiring issue with the front engagement - remember the front differential now uses an internal electromagnet to engage the side gear that's the same design as the rear locker (which is likely why they can't also put a front locker in it ).

 

[TheLCProject]

This seems like the same minor s*** that made the early 100 Series 2-pinion front diffs blow.

 

[Jetboy]

If only Toyota had take time to work out the details on it. They had to rush it to production in only 19 years since the last full redesign. What do we expect under that kind of lightning schedule?!?!

 

[AndrewTK]

I saw that. And it was on a pretty moderate obstacle. Not good. I haven't heard of people blowing up Tundra or LC300 front ends, so hopefully it's a one-off failure or something minor like a wiring issue with the front engagement - remember the front differential now uses an internal electromagnet to engage the side gear that's the same design as the rear locker (which is likely why they can't also put a front locker in it ).

Agreed, it didn’t look like anything there was providing the kind of sudden traction that would explain a break. And it looked like the Tacoma was being more restrained on giving it gas than the Colorado was.

 

[bjowett]

I saw that. And it was on a pretty moderate obstacle. Not good. I haven't heard of people blowing up Tundra or LC300 front ends, so hopefully it's a one-off failure or something minor like a wiring issue with the front engagement - remember the front differential now uses an internal electromagnet to engage the side gear that's the same design as the rear locker (which is likely why they can't also put a front locker in it ).

The front 8” Tacoma diff has a traditional shift fork ADD, not the e magnet type.

 

[Brown98LC]

Maybe I'm getting old and it's time for me to disconnect from the Internet but the roll out of the TNGA-F era toyota trucks has definitely not been trouble free.
I know today vs previous decades more people have access to the Internet so we will see more reported failures/issues because people without issues won't post but the amount of engine failures here on twin turbo 300s and other random issues here and there is definitely more than the usual "first year" issues.

Toyota is still better than the rest but its noticeable.
It's kind of odd considering they had so much time to work on these redesigns.

I'm just talking bull**** here and what I am saying has no tech merit whatsoever just old wives tales but thats what I am seeing right now.

 

[TheLCProject]

Maybe I'm getting old and it's time for me to disconnect from the Internet but the roll out of the TNGA-F era toyota trucks has definitely not been trouble free.
I know today vs previous decades more people have access to the Internet so we will see more reported failures/issues because people without issues won't post but the amount of engine failures here on twin turbo 300s and other random issues here and there is definitely more than the usual "first year" issues.

Toyota is still better than the rest but its noticeable.
It's kind of odd considering they had so much time to work on these redesigns.

I'm just talking bull**** here and what I am saying has no tech merit whatsoever just old wives tales but thats what I am seeing right now.

@Phillyd2

This is what is striking to me. Thanks for voicing it.

 

[Rednexus]

Maybe I'm getting old and it's time for me to disconnect from the Internet but the roll out of the TNGA-F era toyota trucks has definitely not been trouble free.
I know today vs previous decades more people have access to the Internet so we will see more reported failures/issues because people without issues won't post but the amount of engine failures here on twin turbo 300s and other random issues here and there is definitely more than the usual "first year" issues.

Toyota is still better than the rest but its noticeable.
It's kind of odd considering they had so much time to work on these redesigns.

I'm just talking bull**** here and what I am saying has no tech merit whatsoever just old wives tales but thats what I am seeing right now.

Agreed, it's somewhat inexcusable. I mean some of them always had issues (2000 LC trans failures, early 1GR head gasket failures) but they sure didn't show up until pretty late in their lives.

Toyota had plenty of time to get this right and didn't. I also totally agree with never buying a first-year vehicle - we usually buy them in the last couple years of the planform life when everything has been sorted (flipside of that is your vehicle feels kind of old just a few years later).

 

[Jetboy]

The front 8” Tacoma diff has a traditional shift fork ADD, not the e magnet type.

I forgot that. You're right. I guess that theory doesn't work.

The way it popped to me looked a lot like a dog clutch disengaging under slight load. A lot like the ADD disconnecting under slight bind. It didn't look to me like a typical shaft failure. Usually that's quite a bit more aggressive in how it happens.

The 8" fronts have been damn near bullet proof in the last gen 4R/Tacos. I was actually pretty amazed that after 8 years I sold it with the 2 front spare axles I picked up when I bought it expecting to need them. I still have a front diff sitting in a bin that I never needed.

A failure in the transfer case either unintentionally disengaging or internal failure somewhere would be unusual. Do we know if it uses a VF2BM? I kinda assumed that to be the case, but maybe i'm wrong. Since it was in 4lo - I think all of that shifting happens on a common shaft in the VF2A right? So it's unlikely that it disengaged the front drive without also disengaging the planetary reduction unless the shift fork came loose from the shaft.

Is there anything else? Pinion failure - usually that's pretty noisy and obvious. Or a collar or shaft in the transfer case? Or maybe the transfer case chain came apart? I can't think of many other places that would have failed in the way it did.

 

[mkennedy009]

I know I am old, the internets have allowed us say out loud the quiet things.
I watched the video and I think he was spinning the engine to fast and the electronic brain malfunctioned. Think of that sound as a brain fart, only it broke something.

 

[TheLCProject]

It's absolutely a 9.5 inch diff...

I can vouch for that. I have seen the prototype and it is a 9.5inch rear diff.

Part of me feels this is a typo. But time till tell. The preproductions absolutely had 9.5 inch rear diffs. Would be a let down for sure. Seems odd the gx would be any different.

It is very possible that some of the pre-production units had different components then actual production will.

Sorry, not sorry. I had to do it. Just because someone goes against the grain doesn't mean they are wrong.

And, this is what it really means; I'll quote TWILLY for the summary. And don't construe anything above as reflecting his opinion.

Toyota's choice of the 8" rear differential gives me pause. On one hand, I am confident that it (and other running gear) will be robust to intended capacity. On the other hand, that intended capacity, shown perhaps most acutely in payload, is not that of previous series, and marginal for my use case of remote touring.

All of this signals to me that Toyota has taken aim at the weekender segment (the Wrangler, Bronco, and 4runner market) with a capable, mid-sized Land Cruiser designed for lower capacities than the mid-sized Land Cruisers that preceded it.

While seeing improved efficiency and range, the 250 seems to continue a decades-long, series-by-series diminishment of touring-relevant capacities among US market Land Cruisers.

 

[Zill]

Sorry, not sorry. I had to do it. Just because someone goes against the grain doesn't mean they are wrong.

And, this is what it really means - thanks for the assist TWILLY and the nice takeaway.

At the end of the day, they had to cut weight somewhere to help get better MPG and also reduce the cost per unit. We are now seeing the light of their decisions and what they actually scrimped on.

Hope to see the review from Savagegeese, as they are one of the only reviewers that say it how it (really) is.

 

[TWILLY]

Sorry, not sorry. I had to do it. Just because someone goes against the grain doesn't mean they are wrong.

And, this is what it really means - thanks for the assist TWILLY and the nice takeaway.

I don’t want that post to beget bad feelings on the forum. I’m following the data, and trying to be intellectually honest about what those data mean.

I’m still befuddled by the discrepancies in payload (gross less curb) on the build website vs. the technical specs posted today.

The former data yield payloads from nearly 1700 to nearly 1800 lbs, which is great. But the latter yield payloads from the 1300s to 1400s.

If there’s a litmus test for me, this is it. I trust Toyota to build robust to capacity; what those capacities are is important, and telling.

The LC 250 will be a fantastic, capable off-roader, but if the tech spec payloads are true, its capacities as a tourer in my opinion, for my use case, will be quite limited.

Cheers, all.

 

[TheLCProject]

I don’t want that post that I wrote to beget bad feelings on the forum. I’m following the data, and trying to be intellectually honest about what those data mean.

Cheers, all.

I edited my post above to try and cut you out of my frustrations trying to raise attention since August. Sorry.

You've been good to focus (and keep us all focused) on what we actually know at the different stages and remaining hopeful but pragmatic.

I'll agree, it's better than no land cruiser.

 

[TWILLY]

I edited my post above to try and cut you out of my frustrations trying to raise attention since August. Sorry.

You've been good to focus (and keep us all focused) on what we actually know at the different stages and remaining hopeful but pragmatic.

I'll agree, it's better than no land cruiser.

Thanks.

 

[Knowbuddy]

Sorry, not sorry. I had to do it. Just because someone goes against the grain doesn't mean they are wrong.

And, this is what it really means; I'll quote TWILLY for the summary. And don't construe anything above as reflecting his opinion.

Yep, I was wrong due to Prototypes I saw in person. I will admit super weird to go back and tag me. But that’s fine. Do what ya gotta do boo.