Originally Posted by
JevUK
After looking at the chassis from all those years ago it came to my attention that the Diff does not have a thrust race, what a stupid design lol
. I found that the thrust from a corally f1 car fits and it worked well
. I've now got an old rc10 L series one to try too.
Pretty much all new pan cars have gotten rid of the thust race design in favor of the cone washer. The cone washer uses the inner hub bearing as a thrust race and actually is considerably smoother then an older style thrust race assembly. The problem though is the bearing used is not designed for a lateral load like that so it wears out extremely fast causing a nasty feeling diff. Slapmaster Tools is making a conversion for pan cars now using a thrust race assembly of much higher quality then the old thrust assemblies so it is much smoother, almost as smooth as a modern diff but with 100 times the durability.