This is a great replacement for your 500 class Helicopter
Trex 500 Autorotation Tail Drive Gear: Tarot 500 TL50019
500 Class Strait Cut Main Gear (White)
ALIGN TREX 500 AUTOROTATION TAIL DRIVE GEAR H50019T BNIB
500 Class Plastic Tail Blade (76mm from bolt hole)
500 Class Flybar Head Linkage Rod set
500 Class Landing Skid
