Compatible with SCX24 Bronco, Gladiator, C10, Wrangler, Deadbolt, Power Wagon (AXI90081/AXI00001/AXI00002/AXI00005-AXI00007). ​High-torque 72T motor​ delivers 10% more crawling power than stock, ideal for rock crawling ​2-Speed Transmission with Seamless Shifting​:Mechanical high-low gear shift controlled via ​original SCX24 remote​ (AUX channel). Switch to low gear for precision crawling or high gear for trail running—no extra controller needed ​Superior Torque for SCX24:72T 130 Motor with 10% increased torque compared to the original, mechanical high-low gear shift, compatible with the original remote control gear shift, gear shift servo connected to the receiver's AUX channel Easy Installation:It requires the removal of the electronic speed control mounting plate and battery mounting plate for installation, and you need to find your own installation position for the electronic speed control or purchase the RCAWD kit ​Complete Upgrade Kit:SCX24 130 Motor 2-Speed Variable Gearbox with Flat Head Hex 2*10MM 4P, Cup Head Hex 1.4*6MM 4P, and Black Gearbox Base 1P SCX24 130 Motor 2-Speed Gearbox 72T with Flat Head Hex 2*10MM 4P, Cup Head Hex 1.4*6MM 4P, and Black Gearbox Base 1P suit for AXI90081 AXI00001 AXI00002 AXI00005 AXI00006 AXI00007 72T 130 Motor with 10% increased torque compared to the original, mechanical high-low gear shift, compatible with the original remote control gear shift, gear shift servo connected to the receiver's AUX channel. It requires the removal of the electronic speed control mounting plate and battery mounting plate for installation, and you need to find your own installation position for the electronic speed control or purchase the RCAWD kit