ProTek R/C 3/32" (2.4mm) Ceramic Differential Balls (12)
[PTK-2006]

ProTek R/C 3/32" (2.4mm) Ceramic Differential Balls (12)
trevor jones - Rating: 5 of 5 Stars! Verified Owner Tuesday, January 17, 2012
I just added a set to my sc10 and b4.1 factory team kits. Working great!