Originally Posted by WagwanBumba

I'm running with the 2mm plate under the rear gearbox. What's the benefit of having this/removing it? Not really sure ...

Thanks!

Originally Posted by yunowill

Hey guys not sure how many people have had problems or wear on the car yet . But I am running my Xb4 15 at my local carpet track that has medium traction . Basically I am having a real issue with my outdrives and my outdrives on the slipper shaft both front and rear of the car . Not sure if any of you have had excessive wear on these parts but mine is getting pretty bad to the point that I'm almost second guessing this beautiful car because my wallet can not afford outdrives every couple weeks . This being said I have been staying on top and replacing my driveshaft pins .

if anyone can chime in on this that would be great

Thanks in advance

Originally Posted by jmcelroy42

https://www.youtube.com/watch?v=SmfInldgGsc#t=248
This guy has a syringe with the tip cut off that he uses to push the fluid into the diff.

Originally Posted by John Myall

Running in the UK, I found that removing the 2mm plate made the car better over bumpy blown out grass tracks, much like it did on the old Yokomo BX when we used a one piece chassis.

You also have the option of replacing the plate with lead/brass to get a bit more forward drive in low grip conditions.

Originally Posted by EricW

That's Paul Lemieux and that's his own brand of diff fluid. I was going to post this video but you beat me to it.

Originally Posted by vadersing

New to Xray XB4, which after market wheels are suitable?

Originally Posted by randy0025

So I drove my xb4 15spec lastnight at Rc Clubhouse here in Michigan and it was a blast. I ran it with 8k/100k/5k and the car was soooo easy to drive. I was much faster going in and coming out of the corners. The only issue I had is that I was unable to clear the quad with a Orion r10.1 pro and 6.5t when others were able to make it, even in 2wd mod buggy. I am going to try 300k next and see how that helps. Overall I've got to say that the center diff is a Must Have item. So easy and such a blast to drive.

Originally Posted by vadersing

New to Xray XB4, which after market wheels are suitable?

Originally Posted by Troy Carter

The fluid comes with the syringe which makes it very easy to fill a diff. Just give it some time, 8hrs or so, to settle before fitting it all back together to be sure the air is out of the diff.

Originally Posted by HeavyD99

Raising the rear diff/tower etc. 2mm with the plate is lowering the roll center, I believe. This is beneficial on high traction tracks like carpet/astro, and high bite clay (slicks, maybe bar codes).

Originally Posted by rcgod

I've never driven a wheeler with a center diff, but some of this talk makes me wonder if it would be better to go back to the slipper if you need to run 500k or higher diff fluid. Isn't that basically almost locking the center diff?