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-   -   Mugen knuckles on a Maxx... (https://www.rc-monster.com/forum/showthread.php?t=30913)

Kcaz25 01.13.2012 11:12 PM

Mugen knuckles on a Maxx...
Does anyone know if Mugen knuckles will fit a Maxx? Does anyone have both to find out?

If they do then will the Mugen shafts fit in the diff cups?


Semi Pro 01.14.2012 12:29 PM

different sized bearings

different over all height, changes suspension geometry for the worse

cvd length changes alittle but i cant remember what we used, i think we went with revo cvd's

have to use mugen balls

turn buckles have to be changed too.

over all it wasn't worth it, be feel free to try, let me know if you have better luck than we did

Kcaz25 05.06.2016 06:14 PM

Over fours years later...

I ordered the parts and called up a machine shop. :yipi:

This maxx thing. :whistle:

I plan on adding pictures next week.


Kcaz25 05.03.2017 03:50 PM

Not Mugen because the knuckes dont give enough trackwidth. But Arrma Kraton BLX knuckles are perfect!


ruudxd 05.05.2017 06:02 AM

Looks good!
You really need to get them in aluminium though :)

Kcaz25 05.05.2017 11:18 AM

And Hot Racing makes them in aluminum. But i promise it would only be for bling because the plastic is strong enough.

ruudxd 05.05.2017 02:27 PM

That is why I said it :)
It would look great with the aluminium arms you have I think.
Altough the black doesn't look bad either.

May I ask why you would replace the knuckles with these?
Bigger bearings, using standard 8mm 1:8 scale axles, better over quality?

Kcaz25 05.06.2017 10:08 AM

Yes to all three. Bigger axles being the main thing. Anytime you can put something that is 1/8th scale on the maxx you win. The MMM system is too much for the stock maxx. My build thread(not finished) is called something like This 2200kvMMM is tearing up my 3906.

The second best thing about these knuckles is the they help elimi ate "bump steer". Have you noticed that the upper pillow ball is set in more? That is how it does this. That is why the RacerX knuckles do this.

thanks for your interest.

ruudxd 05.09.2017 07:24 AM

No problem, always happy to learn new things!

The Maxx looks great!

Kcaz25 05.21.2017 03:03 PM

Parts, price, place.

ANY lower 3.3 a-arm. $Free-$50 Mine: FLM lower arms.My choice and favorite for this is FLM arms. They are 6061 t6 billet and I have put them through the paces. Once they took a direct hit on the front tire only to bend to have the lower pivot ball break and the top one bend. True billet, cheap price, plus smart structural design makes them a great choice
CLICK RC-Monster Store

Upper UE RacerX arms. $75-200 Or UE EXT Upper arm. There are a couple on ebay but they are sold with the whole kits. Very expensive. Good luck on finding just the upper arms. I was able to find them. (Thanks Fred!) Old .15 maxx upper arms might work. Now you have to drill and tap your arms. The pivot ball hole at the end of your arms is 5mm it has to be drilled to 6mm and have the hole tapped. A local machine shop charged me $40. They offered to do it free but I didn't have all parts ready. I went back a few weeks later and a sales guy heard about it and made them charge me. You can do it your self too. The tools can be find relatively cheap. Just a tap set. You can sometimes find just the one tapper bit on ebay or amazon.
75-200 dollars. They are listed for 28 dollars a piece on at UE but they are out of stock.

Kraton or Outcast BLX front carriers. $20. Make sure they are BLX You can also find them in Aluminum but the plastic is plenty strong enough here.CLICK EBAY
EBAY Aluminum
CLICK Aluminum Here is the thing If you buy the carriers as plastic from the chop shop with the pivot balls in them they will be standard thread. You will be drilling and tapping the arms out okay? You will only be able to use 2 of the 4 arrma pivot balls anyway. So I strongly recommend Mugen. The superior pivot balls are for the Mugen mbx5 to mbx7. They fit perfect and are metric thread the best thing is that they are LIGHTER WEIGHT and smoother and the after market offers them in TITANIUM. NOW if you buy the aluminum ones they will never come with pivot balls. Here is what you need to know about the pivot balls:

Mugen pivot balls $20-50 You will not be able to use all four of the Arrma pivot balls anyway. You need 2 Mugen Pivot balls without the stop and 2 with the stop. The ones without the stop on them go the bottom the ones with the stop go on top. The ones without the stop are getting harder and harder to find. If you can't find them you could dremel or file the stop off.



Arrma Kraton BLX axles $20-40 EBAY CLICK Make sure you get BLX. You could get the whole assembly You will need the 2 little parts inside the joint. The cvds that we will use don't come with the little parts. If you think you have the parts you can just buy the stub axles.
It might be better to instead buy the little parts and then the stub axles here they are:


SWORKZ 330108 cvd shafts. 125mm. $30EBAY CLICK
Most cvds should do that are 124-126mm in length.

Arrma BLX Kraton/Talion/Outcast Hex hubs $10

EBAY CLICK Make sure you get the BLX

The turnbuckles are up to you. $Free-30 The TRX3.3 112mm red tubes will work if you take off the supplied plate that comes with the Arrma Carriers. I suggest you find shorter turnbuckles and use the supplied plate. I think you will need around 95mm. Turnbuckles are easy to find. You could order shorter turnbuckles and find long rod ends that you could cut to fit.

There are other things we could talk about. Like if bump steer isn't something you notice or care about you could get the Arrma Nero Carriers and keep your stock or aluminum stock arms. No need to get the expensive and rare RacerX or EXT. This will probably mean that different CVDs will be needed but you can use your Arrma pivot balls without having to get Mugen ones. Just remember when you tap your arms to tap them with a standard tap.


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