Traxxas maxx help

[jimmy777]

I have an older traxxas maxx that keeps shredding axel shafts. I'm new to this forum as well my first post (hi guys) but I wanted to buy steel shafts and I see 2 styles. I was wondering pros and cons to both styles (pics for reference). I was thinking the thicker ones would be better. I use it to rip around bash and filp. I changed my gear oil to 100k front 500k rear and 20mil center and that's when the rear shafts started breaking on pavement only. I think it's because the rears lock up more was hoping to fix issue with stronger parts.

 

[Beer_Goggles_RC]

I typically prefer the dogbone style CVDs. Fewer moving parts = less to break. Only downside is if there's too much suspension travel the dog bone can fall out of the cup.

Do you have a picture of the shredded axle? Is it breaking at the sleeve or at the joints? All of them or just one?

May want to check bearings. A locked up bearing could put extra stress on the axle.

Edit: and welcome to the forum!

 

[WickedFog]

All of the ones you will find on Amazon besides actual Traxxas brand will most likely be Chinese made, with Chinese steel, with inferior hardening processes. The first ones pictured above - all of those style on Amazon have reviews saying the pin wears out, shafts bend, and the cups break. Anything less than 4.5 star reviews, I read the reviews carefully and try to decipher the educated reviews from the novice reviews. I would steer clear of that style based on what the reviews say.

The ones in the second pic only have 2 reviews, so I wouldn't trust those reviews at all since it could be the seller's friend reviewing them for the seller.

I assume since you are looking at the Widemaxx ones, you have the Widemaxx arms on your Maxx?

I know Integy makes nice stuff, but these only have one 4 star review, so it's hard to say if they are good. But like I said, Integy does make nice stuff.

https://www.rcsuperstore.com/integy...yf-skqludrBqQqu0LbH0XpHt3a5Yt0RUaApuTEALw_wcB

Welcome to RCTalk.

 

[jimmy777]

So they break right where the go into tire and it only happens on pavement. I redid my bearings in whole car when I changed the gear oil. I am a Backyard mechanic and work at valvoline and my thought is thicker oil giving it less slip like weilded diff on a real car so when on pavement the inner tire can not spin slower causing more stress. It only happens in corners on pavement. Thanks for the responses guys you guys are quick. I will buy traxxas brand if anything

 

[Beer_Goggles_RC]

So they break right where the go into tire and it only happens on pavement. I redid my bearings in whole car when I changed the gear oil. I am a Backyard mechanic and work at valvoline and my thought is thicker oil giving it less slip like weilded diff on a real car so when on pavement the inner tire can not spin slower causing more stress. It only happens in corners on pavement. Thanks for the responses guys you guys are quick. I will buy traxxas brand if anything

Quite possibly could be. Generally OEM parts can hold up to an OEM setup and electronics. I don't have any experience with the Maxx or much Traxxas experience in general. But 20mil sounds pretty high for the center imo, but I know a lot of bashers will even just run silicon ear plugs to completely lock up the diffs. Idk if it will help with your setup at all but on my 6s outcast I'm running 500k/1m/500k and it'll do standing backflips. Though the actual size of the gears can affect how the fluid reacts and I'm sure the Traxxas gears aren't the same size and shape as the arrmas

 

[jimmy777]

Quite possibly could be. Generally OEM parts can hold up to an OEM setup and electronics. I don't have any experience with the Maxx or much Traxxas experience in general. But 20mil sounds pretty high for the center imo, but I know a lot of bashers will even just run silicon ear plugs to completely lock up the diffs. Idk if it will help with your setup at all but on my 6s outcast I'm running 500k/1m/500k and it'll do standing backflips. Though the actual size of the gears can affect how the fluid reacts and I'm sure the Traxxas gears aren't the same size and shape as the arrmas

Forgot to mention fully upgraded to 8s system (motor esc ect .) from stock 4 but I norm only run 4 at a time

 

[Beer_Goggles_RC]

Forgot to mention fully upgraded to 8s system (motor esc ect .) from stock 4 but I norm only run 4 at a time

That could definitely be a factor. Even on 4s that 8s system will put out a lot more power. They’re not cheap but these Vitavon CVDs will take a hell of a beating.

Edit: what’s the size and KV of the new motor?

 

[WickedFog]

You might find going to a bit lower viscosity in the rear will save you some maintenance issues. Maybe try dropping to 400k, even if that means mixing up your own. When dealing with cornering, you really don't want to lock your diffs up too much. Especially on pavement where you will get a lot of traction.

I didn't see that Vitavon made stuff for the Maxx. If the budget allows it, they make really wicked stuff.