●Use for T-REX 600PRO/600EFL PRO/550E/550X
●Utilizes newly developed, highest spec and superior anti-wear material to increase the overall strength and durability for torque tube drive gear. Effectively minimize gear striping and crash damage.
●Must with Autorotation Tail Drive Gear Set(H60198QA)
●600 Front drive gear assembly x 1
●600 Short umbrella gear x 1
●600 Long umbrella gear x 1