Spec-R have released a gear diff for the Associated TC6. The gear diff consists of a light weight plastic housing, nylon gears and long life diff joints. Long lasting and durable material result in consistent and better performance. Also new from Spec-R are these carbon material internal gear for use inside Spec-R gear diffs. These new parts are hard and very durable and it can be used with all Spec-R gear diff. Source: http://www.redrc.net/2011/09/spec-r-tc6-gear-diff-carbon-gears/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+RedRc2+%28Red+RC+-+RC+Car+News+DF%29