Originally designed for the Ultima SC and DB line of 2WD off-road vehicles, Kyosho’s 2WD gear differential set also fits the RB6 and RT6 as well as the SC-R competition kits. The set includes all needed parts to equip ball differential gearboxes with a gear diff in order to maximize traction on high bite surfaces such as astro turf, carpet and sugared clay. Click to expand...View attachment 1970 Read more and see photos via the source link. Source:... REDRC: Kyosho Ultima 2WD gear differential set Continue reading...