#604HD Pneumatic Tri-Gear Set
#605HD 90 deg .45 - .75 Pneumatic Main Retracts 3/16" Wire
#606HD 85 deg .45-.75 Pneumatic Main Retracts 3/16" Wire
#607 90 deg .45-.75 Pneumatic Nose Retract 5/32" Wire
#615 100 deg Pneumatic Rotating Main Retracts
#618 Top Flite AT-6 Pneumatic Retracts
#618 RoboStrut Conversion Kit
#618ROBO Top Flight AT-6 Pneumatic Retracts w/RoboStruts
#619 Top Flite DC-3 Pneumatic Main Retracts