Yeti XL Limited Slip Build (or any other)

[twissted]

This picture shows what to do and also shows what spring to use and what not to use.


The lower heavy spring is the one needed.
Guys I bought these springs years ago at Home Depot is a verity pack of springs. Finding the right spring rate is key. Also The aluminum Diff housing is key as it will no warp over time from the pressure that is on the gears that put the pressure on the housing. I'm not saying it will not work I just don't know because I haven't tried it. I'm going to though. Also when you cut the spring I use a dremel cut wheel. Feather the cut edge so that it is not going to bind against the gear. You get this right and you will not need locks hardly ever. Good luck!


Up Date! The Yeti XL is unable to do this mod. as it has 4 spider gears.

[twissted]

Yes... your seeing this right. That is JB Weld black not the gray. This works well and it takes the shock out of the gears well.

[twissted]

The Diff you see in the pictures above are for the Traxxas Revo, summit, slash and T-Max. diff housing is hot bodies.

[Lentsnh2012]

So, you have made this thread using Traxxas gears and diff, yet you haven't confirmed if it will work with Yeti XL diffs... very smooth. Same with the duplicate thread in the Summit Sub-Forum.

[twissted]

I know it works in all diffs with this design. And before you go bashing on something you know nothing about try it. The problems that you will face are talked about. That being a plastic housing may warp with the pressure that is put on the gears.
Oh buy the way.... The chances of a locker in a 6s system like Yeti XL will not happen. It will break to many parts. The Traxxas Revo has the Spool system and it is a big time bomb with a short fuse. So if you want to bash this. Knock your self out! It is the only thing your going to get that works. And when CNC diff housing come out you will have a system that hold up to hot days and 6s power.
Oh by the way I shared this in a lot of places. 1/5 scale forums and street, gas and nitro. You come up with something like this and get back with me.

[twissted]

And for the guys that have the machine shop that can mill a diff cup. Mill the cup to add a friction disk on the out side of the spider gears.

[twissted]

Here Is even a better design for the guy with a machine shop. Mill spring pocket on the out side of the spider gears and add the cross center brace for added strength. This would work two fold, as the spring would absorb the shock from jumping and wheel hop and of course work as a limited slip.

[Lentsnh2012]

Originally Posted by twissted

I know it works in all diffs with this design.

Oh by the way I shared this in a lot of places. 1/5 scale forums and street, gas and nitro. You come up with something like this and get back with me.

So you have tried them all?

Why should I try to come up with something like this when it has been done many times before. You could also just put in very heavy diff fluid.. far easier. By your normal posting style, it seems like you need to stay over on those forums.

[silvrcummns]

So what makes it a limited slip? Is there enough friction between the housing and spider gear to lock up when needed but slippery enough to allow it to differential when turning? Or is the jb weld supposed to be the friction? Not to sound hoity toity but my full size truck work experience with differential and limited slips isn't translating to what you have pictured.

[twissted]

I'd loose my head if it wasn't glued back on!

[twissted]

Hey anyone see my camera?

[twissted]

Where did I put that camera?

[Lentsnh2012]

Originally Posted by twissted

I'm not going into how it works! If you want to know that look it up on youtube. As for posting stupid and uneducated remarks before looking up how this works or even trying it. Well it kinda shows your IQ and your willingness to try something new.

Well, you totally sold me on this mod! I never knew that is how it worked.

It's kind of hard to sell something without knowing anything about it. It's like trying to sell a vehicle on the lot, but then telling your prospects to look it up on YouTube to learn about it. A well written mod would include the How To install and then how it performs/works. All you have shown is a spring in a diff.

I don't see the stupid or uneducated remarks anywhere. But if you want one: "Sew, how do thiz wrk? Can yu lik put it in that dat is it? Were do yu git tha spreng?"

[twissted]

The washer idea works I have a aluminum disk on one side and a electrical washer on the other. I kinda want to see how it holds up. The spring is also compressed more and seems to have more pressure on the gears also. It is going to be in a plastic diff cup so it will be a test to the factory parts as well. It is locked up pretty tight.

[twissted]

Stand strait!

[silvrcummns]

Originally Posted by twissted

I'm not going into how it works! If you want to know that look it up on youtube. As for posting stupid and uneducated remarks before looking up how this works or even trying it. Well it kinda shows your IQ and your willingness to try something new.

Is this post directed at me? I was curious how a spring between 2 spiders gears with jb weld makes a diff limited slip. Otherwise the friction is between the spring and gears or gears and carrier.

[Crank]

Originally Posted by silvrcummns

Is this post directed at me? I was curious how a spring between 2 spiders gears with jb weld makes a diff limited slip. Otherwise the friction is between the spring and gears or gears and carrier.

I was wondering this too silvrcummns.
If you fill the diff with JB Weld it's locked so the spring is irrelevant, but I did see that you said use the "black" so I'm assuming that you are only using half of the 2 part epoxy?

[twissted]

Smile real big!

[Crank]

Originally Posted by twissted

I can tell that you don't know much about 2 part epoxy. If you don't mix the two compounds together they will stay in a soft state. This is why you only use the Black paste and not the hardener that is the gray.
I don't know how to be more plain than that. If you look at some of the pictures it really tells you what is going on. If you don't know about JB weld don't you think that you should find out? It is used a lot in the hobby industry. My I suggest that you go and try what I have posted and then you will learn what is posted so that your rc's will improve as well as skills with building and modding what your using as well as planning on for future builds. It will also help you understand how things work. Class is over and now it's time to get your hands dirty.

A little testy are we?
Crazy how a few people have asked simple questions and the only answer you can give is,
"I don't know how what I am doing or using works, go look it up?"

Yes, you could have described the reason for using half of a 2 part epoxy in a differential when there are much better options.
Part of posting how to's is explaining why you are doing what you are doing and why you are using certain things to achieve your desired effect.

No need to get so twissted out of shape....

[twissted]

Say Cheese!