What are the main differences between the GB and GB2 Proton Packs?
A. Several of the differences include: -Different color Raytheon Crank Knobs. Gray for Ghostbusters and black for Ghostbusters 2. -The Ribbon Cable is very different in both movies. -The particle thrower in Ghostbusters 2 is mounted at more of an angle to make it easier for the actors to draw. -The Ion Arm is slightly different in both movies. -The particle throwers tip on the GB1 pack has a mechanism that allows it to extend.