To upgrade a vehicle that can have the diff locking functionality fitted you will need 3 x AR390103 and 1 x AR390160

Powerhobby 5010 50MM High Speed ESC / Motor Cooling

Kyosho VZ464 Carbon Front Shock Stay R4 Evo

Powerhobby Aluminum RC Shock Flex Blades FOR Traxxas TRX-4M

DuBro 2322 Heavy Duty Ball Links 3mm (12) For Airplanes / pushrod connectors

Powerhobby Mounted Foam Tires / Wheels (4) 1/10 Touring Car 9mm Offset Black 1/16 Rally Parts To upgrade a vehicle thatPOWERHOBBY MOUNTED FOAM TIRES WHEELS (4) 1 10 TOURING CAR 9MM OFFSET BLACK Description Powerhobby mounted foam tires and wheels arrive pre glued and ready to run, saving time on tire prep for 1 10 scale touring car racing and bashing. The foam tire compound provides smooth, consistent rolling performance on carpet and smooth on road surfaces, while the black wheels feature a standard 12mm hex mount and 9mm offset for broad compatibility with 1 10