Strength based on differential gear manufacturer and gear ratio

[far eastan]

Good evening
I'm currently studying differentials.
I've also been looking at the ORTB site for years, but this site has been locked recently.
I want to reduce the load on the AT because I use larger than normal tires.
So, as a future plan, please give me some advice in case I replace my ring and pinion gear.

First of all, are there any differences in the reputation of the gear manufacturers?
sierra
motive
National Drivetrain
yukon
I saw the following.
Are these manufacturers?

I've also heard that yukon is strong.
Are there any manufacturers that make them stronger than their factories?
Are there any major differences between the manufacturers?
Are there any other manufacturers that have a good reputation?

The next question is:
My rear differential is 8.6. 3.73. It's the G80.

The 4WD shop I consulted with said that a 4.56 gear is the best for the tire size.
However, when I told them how big the front differential was, they said it might be too small.
In the small differential of 7.2, he was told that 4.56 might be too thin.
He said he might prefer to opt for 4.11.
I've seen a lot of build threads and various threads, but there were a lot of people using 4.56.
Are there any cases where 4.56 was broken?
Is there any problem with using 4.56?
thank you.

 

[mrrsm]

Due to the complex nature of your Question, I copy-pasted it into the Prompt Window of an "Off Line" LLM (Large Lanuguage Model) AI called "GPT4ALL" after choosing the Llama 3.1 8 Billion Token AI Model with its 128K Prompt Input limitation ...and "IT" provided this information.

Please remember that while most up-to-date LLMs have been improved in the accuracy of their *Thinking* and can often be remarkably On-Point with their replies... Double Checking against other sources of Technical Information may prove more reliable.

This is the entire information from your First Post... dropped into GPT4ALL:



...and this is "ITS" Reply:


Hope this Helps...

Here is the Link to "GPT4ALL" to allow you to Download, Install and Use this LLM "Off Line" and at your own discretion... all for FREE:

https://gpt4all.io/index.html?ref=localhost

EDIT: 02/27/2025 @ 09:29 EST

Sorry about not translating the Chat Text into Japanese. The next time this occasion for the use of GPT4ALL arises... I'll save the "Chats" in English as a PDF and attach them to any further interactions to make things a bit easier for you to understand.

 

[Mooseman]

How much larger are your tires? With 4.56 gears, that might be too much. Probably a 4.10 might be better unless you want to do some rock crawling or other serious off-roading. Otherwise, your engine will be screaming at high RPM when going down the highway

Although I have tried to register, I am not getting the confirmation email from ORTB. The site does look like it's been neglected and has become a spam dumpster. Probably why new registrations don't work and are probably suspended. This does not prevent anyone from searching through all the old posts there. I don't think there is anyone active in that forum to answer any questions. Sad.

 

[TJBaker57]

Although I have tried to register, I am not getting the confirmation email from ORTB. The site does look like it's been neglected and has become a spam dumpster. Probably why new registrations don't work and are probably suspended. This does not prevent anyone from searching through all the old posts there. I don't think there is anyone active in that forum to answer any questions. Sad.

Agreed, the site appears abandoned. I can login. The user "Administrator" has not visited since June 25, 2021 if that tells us anything.

 

[Mooseman]

I finally did get the confirmation email and was able to join, however, checking the status of things, only one staff member, moderator TBYODA, has recently logged on but no effort to clean up the spam infestation. No real activity at all. Quite sad.

Edit: And I can't figure or see a way to start a thread or post a reply to an existing one. I think it's been shut down and from the look of it, since Nov. 2024

 

[far eastan]

Due to the complex nature of your Question, I copy-pasted it into the Prompt Window of an "Off Line" LLM (Large Lanuguage Model) AI called "GPT4ALL" after choosing the Llama 3.1 8 Billion Token AI Model with its 128K Prompt Input limitation ...and "IT" provided this information.

Please remember that while most up-to-date LLMs have been improved in the accuracy of their *Thinking* and can often be remarkably On-Point with their replies... Double Checking against other sources of Technical Information may prove more reliable.

This is the entire information from your First Post... dropped into GPT4ALL:

View attachment 116354

...and this is "ITS" Reply:
View attachment 116355

Hope this Helps...

"GPT4ALL" to allow you to Download, Install and Use this LLM "Off Line" and at your own discretion... all for FREE:

https://gpt4all.io/index.html?ref=localhost

Good evening.
Thank you for your advice.
It took me a while to translate the image.
Sorry for the late appreciation for your advice.
AI is amazing.
It seems he already knew what I spent time researching.

However, the problem is that Japanese 4WD experts in the countryside are not very knowledgeable about American manufacturers (lol)
Thank you for your advice.
thank you very much.

 

[far eastan]

Good evening.
My tires were 32.83inc last summer.
This summer, it will be 34.57inc.

Looking at various sites, there were many threads asking whether sierra or yukon is better.
However, yukon is sold on various EC sites, but sierra cannot be found.
Perhaps it is often sold at drivetrain specialty stores.

ORTB is very disappointing.
I also received a notification from the site administrator that I am currently unable to post.
Also, all of the posts I've written previously had disappeared.
Perhaps there was a problem with the writing and most of it was mistaken for spam.

 

[Mooseman]

You must be lifted and have spacers or adapters to be able to fit those sizes. I did find this chart at ORTB and at 34.5 inches, you would be the second to fit such a large tire as the largest seen in that chart is 35.

offroadTB.com • View topic - Lift/Tire Size Chart

Are you building a monster truck? Even at 32 inches, you're already way beyond the stock 29.5 inches.

 

[Mooseman]

Also found this thread here:

Would these tires and wheels fit

I have a chance to get a set of Badlands XD 20x10 from a Silverado. The tires are Goodyear Wrangler SR-A's 275/60/20. I'm guessing the bolt pattern is 6x5.5 because every other Chevy truck uses that standard except my '05 Trailblazer of course. So I was just wondering if these would work on...

gmtnation.com

 

[far eastan]

I did a 4 inch body lift when I bought the car.
After that, I did a Preload type suspension lift.
Even at 33 inches, there is a considerable gap between the body (fenders) and the tires.
We plan to adjust the spacers in the spring.
My car is EXT, so even in its current state it doesn't look like a monster.
It looks like a regular suburban. (lol)

The following side notes
In Japan, tires are not allowed to stick out of the body.
Additionally, if the width of the car exceeds 10mm + 10mm = 20mm from the listed dimensions, it must undergo a structural change inspection.
Structural changes have been particularly difficult these days, so I would like to change the structure to less than 10mm per side as much as possible.

 

[Mooseman]

In Japan, tires are not allowed to stick out of the body.

Technically, it's not legal in most of the US and Canada neither but is regularly ignored until they get stopped for an "inspection" and fined.

Would be cool to see some pictures of it, especially if you have something "Japanese" in the background. Looks like you have it ready to climb Mount Fuji

 

[far eastan]

Japan consists of four large islands and other small islands.
Three of these have long history, while the northernmost island has was a long history of the indigenous people, and development progressed around the 19th century.

The prefecture I live in is famous for its delicious agricultural products, seafood, dairy products, nature, winter sports, and various sweets and foods, and has been ranked number one or second in the Japanese tourism rankings for a long time.
I live in a city of 2 million people, but there is a lot of nature around.
what do I want to say?
In other words, there are no very historic buildings (such as temples from 1,300 years old).lol
If the car is in the picture, it's in the countryside lol


It's hard to see, but the last two are snow tires, so they're smaller than in the summer.

 

[Mooseman]

Very nice. Your TB looks well built and ready for some serious off-roading.

 

[mrrsm]

GPT4ALL 's "Haiku"

** Haiku 1 **

Dark woods softly fall
Trailblazer's sleek form stands tall
Nature's quiet hush

** Haiku 2 **

Forest depths unfold slow
Trailblazer waits in silence
Moonlight's gentle glow

** Haiku 3 **

Twilight shadows creep
Black Trailblazer parked serene
Night's peaceful whisper

 

[far eastan]

Very nice. Your TB looks well built and ready for some serious off-roading.

thank you.
This year, 120cm (4 feet) of snow was accumulated in nearby cities in 12 hours.
This is already a disaster.

When it freezes, it becomes a skating rink and a washing board road.
I think there's a lot of snow in Canada too, but the surroundings of the house are off-road.
This car is very helpful.

 

[far eastan]

GPT4ALL 's "Haiku"

** Haiku 1 **

Dark woods softly fall
Trailblazer's sleek form stands tall
Nature's quiet hush

** Haiku 2 **

Forest depths unfold slow
Trailblazer waits in silence
Moonlight's gentle glow

** Haiku 3 **

Twilight shadows creep
Black Trailblazer parked serene
Night's peaceful whisper

They can understand haiku too!
It's a shame that I can't directly taste the English atmosphere.
But I enjoyed the translation.
Thank you for your considerate.
thank you.