Why is my axle chattering?
 

Anybody know why my axle is chattering at full steering lock? It does this for both left and right, starts at about 75% steering, and continues on through to full lock. Do I need to shim my diff and if so, which side(s)?

https://photos.app.goo.gl/lHs5orSc8EDCG3tm2

Re: Why is my axle chattering?
 

I'm pretty sure it's just the angle that little joint is working at giving it the wobble. Unless you're going brushless or adding a lot of weight to the wheels I doubt it'll break anything.

Fwiw that wobble has gotten me unstuck a lot of times.

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Re: Why is my axle chattering?
 

Does anyone else's axles chatter when turning? I'm surprised no one's mentioning it in the forums. Hmm...

Re: Why is my axle chattering?
 

All of mine will if i turn too far....just the nature of the beast...mine starts at about 80% or so... Not a big deal and it has been mentioned numerous times

Re: Why is my axle chattering?
 

Has gotten me unstuck alot as well

Re: Why is my axle chattering?
 

Yeah the shafts are binding from over steer. I've busted them before and have also popped dog bones out doing that. Need to turn the steering dual rate down a bit.

Re: Why is my axle chattering?
 

Could be reduce the chattering by using CVD Instead of Universe joint?

Re: Why is my axle chattering?
 

Ugh. Well that's frustrating. They're CVDs for goodness sake! And it's not like I'm asking them to do 90 degrees or something. Shouldn't they be able to take it? I mean, that's the whole point of CVDs, right? Isn't there a way to tune them by filing down the points that rub? I thought I read that somewhere.

Re: Why is my axle chattering?
 

Re: Why is my axle chattering?
 

Scx10-2 have univeral joint style NOT cvd. Cvd's are only good to about 50* while a universal can be clearanced to turn 70*. The further from straight you turn the more wobble there is at the tires as the ears of the axles speed up and slow down while they rotate. That speed change is the chatter.

Stock style ar44 knuckles only allow for about 48* angle so there shouldn't be any issue with breakage.

Re: Why is my axle chattering?
 

Hey WT, thanks for the good info. Did you happen to watch the video? My entire axle is dancing! LOLZ Just wanna make sure I'm not going to break something. ;)

Re: Why is my axle chattering?
 

Flip the rig onto its back and turn full lock either way and hold slow steady throttle. The tires speed up & slow down as they rotate which throws them into a tizzy. Its hard to see unless you're going real slow.

Re: Why is my axle chattering?
 

Yeah I saw that in the video referenced here:

http://www.rccrawler.com/forum/general-crawlers/593097-driveshaft-phase.html#post5778506

Interesting stuff!

Re: Why is my axle chattering?
 

Yes, you were correct. I recalled dlux Eric used to grind the UJ to make it turn 70 degrees. Eric used to shared in his Facebook page on how to grind the Universe Joint axles. "thumbsup"
http://www.rccrawler.com/forum/axles...ml#post5489469

Re: Why is my axle chattering?
 

Thanks Teng. I'm looking into that. :)