This is a great replacement for your 500 class Helicopter
500 Class Lower Gear 145T
Trex 500 Autorotation Tail Drive Gear: Tarot 500 TL50019
500 Class Strait Cut Main Gear (White)
500 Class Slant Cut Main Gear (White)
Align Slant Thread Main Drive Gear/134T Align TRex 500 H50178QAT
500 Class DFC Main Rotor Head Assembly
