On mine, I've taken out the cones,(and thrown them as faar as I could) and replaced them with 5.5mm balls, that I got from a place called "Bearings and Drives"...special ordered them, and 100 balls cost me about 12 bucks. I liberaly coat them with Ronnie Grease, I get from Ashford Hobbies, at the sart of each raceday, and again before the Main. I've moved up from 4.5mm balls to the 5.5mm balls, keep an eye on them, and as soon as you see the chrome coming off, or them getting dull, replace that ball.
Picco Integra 10th 4wd Outlaw .15 8 port Turbo Nova Rossi
I [I]AM [/I]the Driver !
Murnan Modified Motors
Rocket Science Fuels
Auto Racing, Mountain climbing, and Bull fighting are the only true sports, all the rest are just games.