Will the traxxas Rustler reciever fit in the magnum nx

they are both am so it might work.... the scion is a digital proportional radio so I'm not sure about that... best bet is to try the receiver in the truck with the cen crystals first.. (truck not running) and see if they work.. If not try the traxxas crystals...if not and you have a traxxas radio.. use that with the traxxas receiver.... lastly.... hope you have a failsafe

Yes it will. For the best result, you might wanna use same brand of receier/radio, but it should work fine. Make sure you use same brand of crysal..