Caster EX-1 Plastic Spur

[mocky]

I have a caster ex-1 but I personally don't like the noise generated by the steel spur gear, and the pinion seems to showing signs of wear. At first I thought a steel spur gear was absolutely necessary, but after noticing my friends RC8e had a composite spur gear I was curious if there was a spur gear that fits the stock different or if there's another differential from another buggy on the market that fits. I'll post dimensions of stock differential soon for those who own other buggies that has plastic spur gears and want to help. :) thanks for reading