T-jet pick up springs

T-Jet High Performance Pickup Shoe Springs:
These new T-Jet springs are made in the USA from .008" beryllium copper. This is slightly larger wire than Aurora used but matches that used by Johnny Lightning and Auto World. There are 5.5 coils per spring (maybe one less than Aurora) at an uncompressed spring height of .122". The larger wire combined with fewer coils produces approximately the same tension as Aurora springs.
 
These springs will work in all Thunderjet style chassis including Aurora, Dash, Johnny Lightning and Auto World.