Hello - new member here. I have been running a Savage .26
for over a year and a RS4 18ss
for about 4 months. I just got an R40
kit. I am installing this motor
with an SG shaft. I am going to use it with this pipe
. I am painting this body
and this body
My new R40ís build manual says to use grease in the rear diff but I figured that silicon fluid would be better. I filled the rear diff up with 5,000 fluid and put it together being very careful to not damage the gasket. Now that the diff is together I can see a little fluid leaking out where the two halves meet. The fluid is making its way onto the teeth where the belt goes.
Are you guys running silicon fluid in the rear diff? This minor leak has me concerned.