【Compatible with】:The RC upgrades part 1/10 Senton 3S BLX.Bigrock 3S BLX,Granite 3S BLX,Vorteks 3S BLX.1/10 Kraton 4S BLX,Outcast 4S BLX.1/8 Infraction 3S BLX,Typhon 3S BLX,Vendetta 3S BLX.(Original coding:ARA310956) Car Car model】:ARA4312V3,ARA102723,ARA102711,ARA102666,ARA102720,ARA4202V3,ARA4102V4,ARA4102SV4,ARA4202XV3,ARA4302V3,ARA102690,ARA4408V2,ARA102692,ARA4410V2,ARA102668,ARA102721,ARA4203V3,ARA4103V4,ARA4103SV4,ARA4203XV3,ARA4303V3,ARA4105V4,ARA4105SV4,ARA4305V3,ARA4215V3,ARA4315V3,ARA102696,ARA102722,ARA4206V3,ARA4306V3,ARA4319V3 【Long-lasting Performance】:Gears for high strength. The gear set is with precision manufactured gear teeth for smooth, consistent performance,Made of from 7075 aluminium alloy for greater strength and stable driving performance.they works with low noise. 【Easy to Install】:Easy to install, great for replace the old or broken part.Increase overall performance and durability of your RC car 【Special note】:In the position of various screw holes, screw glue is applied, so that the screws are not easily separated from the upgrade accessories. hopsupRC Steel 37T&13T Upgrades Part Differential Case for 1/10 Senton/Bigrock/Granite/Vorteks 3S BLX,Kraton/Outcast 4S BLX,1/8 Infraction/Typhon/Vendetta 3S BLX.Transmission Set Diff Gear.Red(2PCS)