Originally Posted by
Ted Su(TW)
Is there any tips to prevent diff oil from leaking through the hole inside the outdrive cups?
Thank you.
I've found 2 things that help with diff leaking -
1. Replace the stock o-rings with some silicone P4 o-rings. I use the Kyosho P4 silicone o-rings sold at A main hobbies, but I think any P4 silicone will work.
2. Use blue loctite on the two set screws that screw into each ST31 part.