Originally Posted by CoyoteSlash

Yeah, I did. There are RC10GT spurs that will work in the 54,52,50 range (don't quote me) but I kept the 58 because they were easier to get ahold of.

The Pinion is the biggest that will fit without some annoying modification. It slides in to almost a perfect mesh. It's 'THAT' close. Turned up my radio to 125% and was pacing 1/8 guys and MMM Slashes on a large track (non 1/8scale)

Lemme know if you need any help with anything. I used it for 6 months, but moved to the Pro4 only because I was racing indoors. (it's going back in it this summer)