Direct fit on stock 285mm SCA-1E RTR

Hot Racing's differential spool locker for the Traxxas 8 Cell X Maxx

- Heavy duty CNC machined #45 hardened carbon steel construction

Beefy TTR transmission

then the spur gear will not work and a spur gear designed for a center gear differential will need to be purchased

Futaba - BLS471SV S.Bus Brushless Hi-Speed Metal Gear Surface Servo .07sec/191.7oz @ 7.4V RC Cars & Trucks RTR with Battery Direct fit on stock 285mmFeatures: Input Voltage: 6 7. 4V Speed @ 6. 0V: 0. 09 sec 60 deg Speed @ 7. 4V: 0. 07 sec 60 deg Torque @ 6. 0V: 158. 4 oz in Torque @ 7. 4V: 191. 7 oz in Specifications: Dimensions: 40x20x36. 8mm Weight: 57g