Originally Posted by
Conrad
Diffs, I'm fed up with the stock diffs they go crunchy so quickly no matter which balls I have in them. It might be the harshness of the shaft but I think it might be down to using a diff spring instead of convex thrust washers like Schumacher diffs for example. Only problem is the TC4 outdrives are too small for any of the washers I have, does anyone know of any that might fit?
I don't know what kind of power you are trying to put down but I run mine in VTA and it's really low power but have never had a problem Running the same balls and rings for 18 months still smooth.
The thing I noticed the first time I ran the raced the car was that the "by the book" method for the diff setting is too loose after the first run and starts slipping resulting in flat balls
I run mine all the way tight then back off one turn, then re-tighten to just not slipping. Check after each race day for any need to tighten