crt .5 plastic spur thoughts

[BrianG]

One word: earplugs.

Seriously, if you are really concerned about it, you could use a Kyosho 46T spur, but will need other modifications. You could even use a CD from a 8th scale buggy if you are going to go that far. But, the footprint will be different, which will require new chassis holes and shorter driveshaft.

I did quite a bit of discussion about using different spurs in this thread (starts at post #117). There are a bunch of pics and measurements of the spurs and different ideas I had if that helps you at all...