Edited and create by Marco (lynx75) email : lynx75@gmail.com

When I build a diff I first sandpaper the plates on both sides, normally around 500-1000 sandpaper.

I use Tamiya  Grease hard to put between the outdrive and the plate. Of course make the outdrive and plate clean with motor spray. Then I use Schumacher silicone diff lube for the plate and the ball.

I use a lot of diff lube. Then for the thrust bearing I use Associated black grease.

Before I race, I run the diff in for 30 sec.

Normally I can run my diff for at least 15 runs indoor and 10 outdoors, depends on how dusty it is.

I never change my ceramic ball, use them for 1 year already, I only change the plates every rebuild and thrust bearing.

Most of the time I just run it in the car, half power and hold one wheel, then the other wheel. Then tight the diff little more and do the same till it's tight enough. Approx. 30 sec in total.

I use a lot of diff lube on the plates and the ball and even in the pulley holes.

I found Schumacher diff lube  the best lube for the diff balls. The c-clip or blades we call them are pretty strong even when running modified. I lube them a little bit with Xenon blue grease.

Just grease the pin of the drive-shaft and the blade on the outside before putting it in the diff outdrive.

I sand both sides of the diff plate with approx. 800-1000 sandpaper.

A normal diff in a touring car should be tight enough that it can't slip when accelerate. However, when the traction is very high I would like to let it slip a fraction so not all the power come on the wheel so hard.

The diff pulley is on both side the same. The ceramic diff balls where from HPI, I got them when we were testing in Thailand for the worlds.

I just use the standard Tamiya thrust bearing, don't replace them often and the diff runs fine. I have no experience with Ceramic thrust bearing but it might work.

The ceramic diff balls I use are from Square, some Japanese hop-up company, they have all kind of nice bits for the 416.

I just started to run outdoor and the diff get little dirty after some runs. I have tried the sticker covers and   they seem to work fine.