?Fit for?:The RC Upgrade Parts fit for 1/10 Rustler 4WD/Rustler 4WD VXL.Please note these parts not for other 4WD RC cars. | ?Made of High-quality Material?The RC Upgrade Parts made of high-quality materials and CNC precision machining, it is suitable for heavy load jumping, ensuring high reliability, good compatibility, high protection and long durability. | ?Long-lasting Performance?: The upgrade part is durable enough to improve the overall performance of the rc car.Specially designed strengthening cut-outs for increased crash resistance. | ?Easy to Install?:The RC Hops Up can be directly installed to replace the old or broken differential,do not need any modification. | ?Kindly Reminder?Please stick screw glue on any metal-to-metal joint to make the product more stable.Especially in the position of various screw holes.So that the screw is not easy to be separated from the upgrading fittings.