Ear plugs in xmaxx rear differential

[sullyrscott]

Hi all, first post, first RC. I went to put ear plugs in the center diff of my xmaxx and, like a dunce, packed the rear diff by mistake. I’m wondering if I need to clean it out and put in some lower viscosity stuff. If so, what weight would you guys recommend? I still plan on running it in tarmac occasionally so I suspect the rear needs to be changed back but I’m wondering if anyone has done ear plugs in both the center and rear and what results they had. TIA - Sully

 

[WickedFog]

Welcome to the forum.

Traxxas recommends 20m weight in it center drive unit, which should be the consistency of ear plugs already lol. That's some pretty heavy goop.

I think it has 10k/30k front/rear. I don't know that I would go with ear plugs in the rear since you say you will be driving on pavement. Heck, I don't think I would try it on dirt. That would likely end up breaking things. But it probably wouldn't hurt to try some heavier weights and see how it acts.

 

[armykyle1]

Hi all, first post, first RC. I went to put ear plugs in the center diff of my xmaxx and, like a dunce, packed the rear diff by mistake. I’m wondering if I need to clean it out and put in some lower viscosity stuff. If so, what weight would you guys recommend? I still plan on running it in tarmac occasionally so I suspect the rear needs to be changed back but I’m wondering if anyone has done ear plugs in both the center and rear and what results they had. TIA - Sully

I've read some people run ear plugs in the rear, but I've also seen people breaking them. I've upped my rear diff to a mix of 75/100k and 50/75 front with 20mil in the center. The truck will still diff out a little bit when doing donuts but it's much better than stock. Plus you it gives you flex and less likely to break a diff.

 

[PeighDay]

I run 100k front and rear with silicone earplugs in the center diff.