ALIGN Main Gear Case Set - T-REX 550 & T-REX 600 T-Rex 550 DFC so its whole external diameter

so its whole external diameter is equal in 8mm thick

●Use for T-REX 700 Nitro DFC

•Use for Black Shark / 700 fuselage

Instructions: Specification: ●Use for T-REX 150/150X

ALIGN Main Gear Case Set - T-REX 550 & T-REX 600 T-Rex 550 DFC so its whole external diameterProduct: Illustration: Illustration: Package: Instruction: Specification: New design of one way bearing for preventing locking. Use for T REX 550X 600E PRO 600EFL PRO. Suitable with: CNC Slant Thread Main Drive Gear 112T(H70020A) One way Bearing Shaft(H60139A) 131T M0. 8 Autorotation Tail Drive Gear(H60198)and Torque Tube Front Drive Gear Set(H60228)or(H60229) 131T M0. 8 Autorotation Tail Drive Gear Assembly(H60199)and Torque Tube Front Drive Gear