banjoflyer posted:Why couldn't the GP20 shell be installed "backwards" and then reverse the wiring to the motor leads?
The new GP7 chassis looks symmetrical so it appears you could reverse the orientation of a shell. I don't have a GP20 to compare screw mounting holes but that could be worked out. The speaker housing of the GP7 would also need to be reversed.
Mark
The hand rails prevent flipping the shell. The shells are virtually identical. The holes are all the same. The GP20 I have has larger screws but they clear the holes on the new frame just fine. The holes on the frame for the shell match up. The GP20 frame has a hump where the motor mounts. The new frame is flat. The power truck will mount in the rear. The electronics can be flipped but the mounting is not symmetrical. The old frame is in the first picture.