trf511 diff slipping problem

[m1buc]

hi guys could do with a bit of help.

my rear diff on my 511 continues to give me problems, slipping under acceleration.
I have fitted new tamiya diff plates, ceramic diff balls and new white pulley.also fitted a new thrust race and nut and bolt. This time I also bought tamiya VG diff plate grease part no 42170.

I have built many ball diffs in the years i have been racing but not come across this problem as bad.

As I understand that the diff plate grease goes only on the side of the diff plates that sit on the outdrives? this is to stop slippage? and normal diff ball grease on the balls and otherside of plates.?

I also have trimmed the diff pulley high spots off( which sit next to the diff ball holes) in attempt to get the diff plates to sit tighter against the balls. this has not seemed to work either.
Am i doing something wrong.?

to try and solve the problem I going to buy new diff outdrive part no 51286. but can not find a shop with them in stock.

does anybody have any spare ones for sale or know where i can get them?

thanks mike