Flybar Control Set part #HS1086 and SF Mixing Lever Set (XL) part #HS1072
I have been looking the part list for the t-rex450 and they are almost identical there some part that is different like the flybar control set and some other the reason is because here in arizona there in not a single hobby store the sell parts for the walkera helis only for helis like t-rex, blade cp, honey bee and x400 so if they fit I will convert my #39 heli onto a dragont-rex LOL thanks