Diff rebuilding using the REM process (1 Viewer)

[alia176]

I got this text from my diff builder, Zuk @gearinstalls.com, while he is rebuilding my rear diff. Figured it's a worthwhile knowledge for anyone wanting to a diff rebuild or change their diff gearing.

Here's the text I rec'd from Zuk on my gear setup:
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Good afternoon Ali I have one "option" for you if you're interested.....

A REM processing of the 456 ring and pinion.....$250..... the process is kind of like a super polishing of surfaces of ring and pinion such that it looks like Chrome super smooth.

The result is a ring and pinion that you can run right up to 80 mile per hour if you want right from the start, there is no 500-mile break-in. Just drive it and you can tow with it too. The heat is so minimal with the "super polished" gears that the oil runs cool... At least much cooler than if it were not treated.

Some of my customers wanted just because they do not look forward to driving it in baby mode for 500 miles and others are thinking about a trip they must go on right after I do their gear install and they have to hit the highway almost right away and that is not good with brand new gears unless a process is done similar to this.

Takes a couple of days.

I have a REM treated 4.10 gear on the right and your 4.56 is on the left for comparison
Typically, with normal gears, after 500 miles you have to drain the oil and there are metal particles in the oil
With REM processed gears there is no particles in the oil...... unless the axle housing wasn't cleaned out very good the first time
Here is some good information to take a look at

benefits of rem treatment ring and pinion - Google Search - https://www.google.com/search?rlz=1C1CHFX_enUS745US745&sxsrf=ALeKk00bf4oIWIKvQArQbJKM09kwZ8BS0A%3A1611185055600&ei=n7sIYLqKJMTg9APooI_wDw&q=benefits+of+rem+treatment+ring+and+pinion&oq=benefits+of+rem+treatment+ring+and+pinion&gs_lcp=CgZwc3ktYWIQDDoECAAQRzoECCMQJ1DQRli-1wFgnfMBaABwAngAgAHjAYgB2RGSAQYwLjE3LjGYAQCgAQGqAQdnd3Mtd2l6yAEIwAEB&sclient=psy-ab&ved=0ahUKEwj61Z-H1KvuAhVEMH0KHWjQA_4Q4dUDCA0

 

[LX450JC]

I got this text from my diff builder, Zuk @gearinstalls.com, while he is rebuilding my rear diff. Figured it's a worthwhile knowledge for anyone wanting to a diff rebuild or change their diff gearing.

Here's the text I rec'd from Zuk on my gear setup:
--------------------------------------------------------------------------------------------------------------------------------------------------------------

Good afternoon Ali I have one "option" for you if you're interested.....

A REM processing of the 456 ring and pinion.....$250..... the process is kind of like a super polishing of surfaces of ring and pinion such that it looks like Chrome super smooth.

The result is a ring and pinion that you can run right up to 80 mile per hour if you want right from the start, there is no 500-mile break-in. Just drive it and you can tow with it too. The heat is so minimal with the "super polished" gears that the oil runs cool... At least much cooler than if it were not treated.

Some of my customers wanted just because they do not look forward to driving it in baby mode for 500 miles and others are thinking about a trip they must go on right after I do their gear install and they have to hit the highway almost right away and that is not good with brand new gears unless a process is done similar to this.

Takes a couple of days.

I have a REM treated 4.10 gear on the right and your 4.56 is on the left for comparison
Typically, with normal gears, after 500 miles you have to drain the oil and there are metal particles in the oil
With REM processed gears there is no particles in the oil...... unless the axle housing wasn't cleaned out very good the first time
Here is some good information to take a look at

benefits of rem treatment ring and pinion - Google Search - https://www.google.com/search?rlz=1C1CHFX_enUS745US745&sxsrf=ALeKk00bf4oIWIKvQArQbJKM09kwZ8BS0A%3A1611185055600&ei=n7sIYLqKJMTg9APooI_wDw&q=benefits+of+rem+treatment+ring+and+pinion&oq=benefits+of+rem+treatment+ring+and+pinion&gs_lcp=CgZwc3ktYWIQDDoECAAQRzoECCMQJ1DQRli-1wFgnfMBaABwAngAgAHjAYgB2RGSAQYwLjE3LjGYAQCgAQGqAQdnd3Mtd2l6yAEIwAEB&sclient=psy-ab&ved=0ahUKEwj61Z-H1KvuAhVEMH0KHWjQA_4Q4dUDCA0

View attachment 2628319

It would have been nice if just differentials offered the same process when they built my third members. I would've taken them up on it.

 

[alia176]

As a FYI, many companies who do this process will accept your stuff straight from the vendor you're purchasing your gears from. Then, they'll need an address for your installer to ship the polished items to. It so happens that Zuk has access to a REM shop in PHX so it's quite easy/peasey for him.

You can do this on any gears inside the Tcase as well but not the bearings. Zuk said that it's not worth the effort of cleaning the bearings of the REM particles afterwards.

 

[pappy]

You can do this on any gears inside the Tcase as well but not the bearings.

Gosh, makes me want to tear apart my backup transfer case to send out. Wonder what it would cost to polish all those gears?

 

[lurch]

Gosh, makes me want to tear apart my backup transfer case to send out. Wonder what it would cost to polish all those gears?

Looks like with a rock tumbler, the correct media, and time you could DIY this

 

[alia176]

Looks like with a rock tumbler, the correct media, and time you could DIY this

and three vats of chemical spray!

 

[Mauser]

As a FYI, many companies who do this process will accept your stuff straight from the vendor you're purchasing your gears from. Then, they'll need an address for your installer to ship the polished items to. It so happens that Zuk has access to a REM shop in PHX so it's quite easy/peasey for him.

You can do this on any gears inside the Tcase as well but not the bearings. Zuk said that it's not worth the effort of cleaning the bearings of the REM particles afterwards.

Bearing surfaces are polished already. If you did this to a bearing wouldn't it just wear it down?

 

[empty80]

Do you need someone to hold the flashlight when you reinstall?

I’ve been swirling the drain on a re-gear for a year now, and would like to see the process. Mal is 100% against me re-gearing because of all the other issues I’ve had with others doing the work. I’ve considered going to Slee , but doing a break-in all the way home seems exhausting. Shipping is an option, but . They prefer using the 3.91 ratio out of the 6-speed for the 2016+. Seems attractive, but you buy a Toyota OEM carrier assembly, disassemble it to add a locker, and you’re right there with a Just Diffs custom dropout. Zuk + REM seems the most attractive option for a 4.11 ratio, but there’s still the matter of the install.

 

[alia176]

No worries Brandon, we can do this as the process is pretty straightforward. I don't suppose you can purchase an used 3.91 from someone who is going to deeper gears? OEM carrier assembly sounds like a fully assembled 3rd member which sounds painful to purchase new.

I have 4.11 R&P and they're yours for the taking but I don't suppose they will work in your diffs?

 

[FJCTom]

This is fascinating. Would've signed up to try it with my last regear.

 

[alia176]

Latest from Zuk:

Ring and pinion back from REM and looks nice and chromie

more to come.

 

[FJCTom]

WOW! that really pops!

 

[Mauser]

Latest from Zuk:

Ring and pinion back from REM and looks nice and chromie

more to come.

View attachment 2638037

Since this is an abrasive/chemical tumble that is supposed to get rid of the high spots and tool marks wouldn't it also wear the splines on the pinion?

 

[alia176]

Update from zuk

 

[alia176]

More setup info and pics

 

[alia176]

Cost breakdown. Zuk didn't like my Koyo bearings So i bought some from him.

 

[pappy]

YIKES!

 

[OGBeno]

Cost breakdown. Zuk didn't like my Koyo bearings So i bought some from him.

View attachment 2642346

What was the issue with the Koyo bearings you provided him, Ash?

 

[Quantumkiwi]

YIKES!

View attachment 2642356

If that's even close to what I can expect to be charged in labor for regearing and rebuilding my diffs, then I guess I'll just learn to do it on my own.
I honestly thought it would only be an hour or two at shop rate at most.

 

[pappy]

If that's even close to what I can expect to be charged in labor for regearing and rebuilding my diffs, then I guess I'll just learn to do it on my own.
I honestly thought it would only be an hour or two at shop rate at most.

My cost at U-Joints was less.